Ghada World — A trusted Q&A encyclopedia · 243 questions
Q1: Match each renewable energy source with the way electricity is generated from it:
Answer: Sunlight ↔ Photovoltaic panels, Wind ↔ Wind turbines, Flowing water ↔ Hydroelectric dams, Heat from inside the Earth ↔ Geothermal power plants
💡 Each clean source needs a special technology to turn its energy into electricity without burning fuel.
Q2: Match each weather instrument with what it measures:
Answer: Barometer ↔ Air pressure, Anemometer ↔ Wind speed, Thermometer ↔ Temperature, Rain gauge ↔ Amount of precipitation
💡 Weather stations combine the readings of these instruments to forecast the weather.
Q3: Match each type of cloud with its description:
Answer: Cirrus ↔ Thin and feathery, made of ice crystals high up, Cumulus ↔ Puffy like cotton on clear days, Stratus ↔ A flat gray layer covering the sky, Cumulonimbus ↔ A giant thundercloud that causes lightning and hail
💡 Clouds are classified by their shape and height, and the cumulonimbus stretches vertically for many kilometers, causing storms.
Q4: Arrange the stages of how a raindrop forms:
Answer: Water evaporates from the seas and land then The vapor rises and cools high up then The vapor condenses into droplets around dust particles then The droplets merge and grow, then fall as rain
💡 Droplets need tiny particles to condense around, then they collide and merge until they are heavy enough to fall.
Q5: Arrange these environmental milestones from oldest to newest:
Answer: The Montreal Protocol then The Kyoto Protocol then The Paris Agreement then The Saudi Green Initiative
💡 The Montreal Protocol was signed in 1987, Kyoto in 1997, and Paris in 2015, and the Saudi Green Initiative was announced in 2021.
Q6: Arrange the layers of the atmosphere from closest to the Earth's surface to farthest:
Answer: The troposphere then The stratosphere then The mesosphere then The thermosphere
💡 We live in the troposphere, where weather happens, followed by the stratosphere, which contains most of the ozone, then the mesosphere, then the thermosphere.
Q7: Choose every action that reduces a family's carbon footprint:
Answer: Walking or cycling for short distances, Using energy-efficient appliances, Installing solar panels on the roof
💡 Every bit of electricity or fuel we save means fewer greenhouse gases, while waste increases emissions for no benefit.
Q8: Choose everything that helps protect biodiversity:
Answer: Establishing nature reserves, Banning overhunting, Planting native plants
💡 Reserves, banning hunting, and native plants preserve creatures' habitats, while foreign species may crowd out native creatures.
Q9: Choose everything that raises sea level as the Earth warms:
Answer: Melting glaciers on land, Seawater expanding as it warms, Melting of the ice sheet over Greenland
💡 Melting ice from land adds new water to the seas, and warm water expands to take up more space.
Q10: Choose all the causes that lead to desertification:
Answer: Overgrazing, Cutting down trees and gathering firewood, Long droughts
💡 Overgrazing and woodcutting strip the soil so the wind blows it away, while tree planting and reserves restore vegetation cover.
Q11: Choose all the renewable energy sources:
Answer: Solar energy, Wind energy, Hydroelectric energy
💡 The sun, wind, and flowing water renew constantly, while oil and gas are fossil fuels that take millions of years to form.
Q12: Choose all the gases that are greenhouse gases:
Answer: Carbon dioxide, Methane, Nitrous oxide
💡 Carbon dioxide, methane, and nitrous oxide trap heat, while oxygen and nitrogen, though plentiful, trap almost none.
Q13: Desertification can be caused by human activity, not by nature alone.
Answer: True ✔
💡 Overgrazing, cutting down trees, and poor irrigation are human-made causes of desertification, alongside drought.
Q14: An ozone molecule is made of 3 oxygen atoms.
Answer: True ✔
💡 The oxygen we breathe has molecules of two atoms, while ozone is made of 3 oxygen atoms.
Q15: Methane traps more heat than carbon dioxide when we compare equal amounts of the two.
Answer: True ✔
💡 Methane is much stronger at trapping heat, but there is less of it in the atmosphere and it stays there for a shorter time.
Q16: All clouds produce rain.
Answer: False ✖
💡 Many clouds do not produce rain; rain needs droplets that grow heavy enough to fall.
Q17: Trees store carbon in their trunks and branches.
Answer: True ✔
💡 Trees take carbon dioxide from the air and build their wood with it, keeping it stored as long as they live.
Q18: Weather and climate are two words with the same meaning.
Answer: False ✖
💡 Weather is the state of the atmosphere over a day or a few days, while climate is the usual pattern of conditions in a region over many years.
Q19: Solar energy is a non-renewable energy source.
Answer: False ✖
💡 Solar energy is renewable because the sun rises every day and its light does not run out with use.
Q20: Water vapor is a greenhouse gas.
Answer: True ✔
💡 Water vapor traps heat in the atmosphere, and its amount increases as the air gets warmer, which strengthens warming.
Q21: The ozone hole is the main cause of global warming.
Answer: False ✖
💡 This is a common mix-up: warming is caused by an increase in greenhouse gases, while the ozone hole increases the ultraviolet rays that reach us.
Q22: What does sustainability mean?
Answer: Meeting our needs without harming future generations' ability to meet theirs
💡 Sustainability balances people's needs with protecting the environment and resources, so they remain fit for those who come after us.
Q23: Why is the polar bear greatly affected by melting sea ice?
Answer: Because it hunts seals from the ice
💡 The polar bear relies on sea ice as a platform for hunting seals, so if it melts early, the bear catches less food.
Q24: What usually happens to the temperature as we go higher in the lowest layer of the atmosphere?
Answer: It decreases
💡 In the lowest layer (the troposphere), temperature drops with height, which is why mountaintops are cold and may be covered with snow.
Q25: Why does hot air rise?
Answer: Because it is less dense than cold air
💡 Air expands when heated, so its density decreases and it rises; this rising forms clouds and drives winds.
Q26: Why are big cities often warmer than the rural areas around them?
Answer: Because asphalt and buildings absorb heat and release it at night
💡 This is called the "urban heat island" effect, and it is reduced by trees, green spaces, and light-colored roofs.
Q27: What is meant by invasive species?
Answer: Organisms moved to an environment that is not their home, where they spread and harm native species
💡 Invasive species compete with native creatures for food and space and may prey on them, and they are one of the biggest causes of declining biodiversity.
Q28: Why are frogs considered an indicator of environmental health?
Answer: Because their thin skin easily absorbs pollutants, so they are affected quickly
💡 Amphibians breathe partly through their skin, so the effects of water and air pollution show up on them before other creatures.
Q29: What is dew?
Answer: Water droplets that condense on cold surfaces at night
💡 When surfaces cool at night, water vapor from the nearby air condenses on them, so we find dew on the grass in the morning.
Q30: What is cloud seeding?
Answer: Seeding clouds with substances that help raindrops form
💡 Tiny particles are sprayed into suitable clouds so droplets gather around them, grow, and fall; it only works when suitable clouds are present.
Q31: What happens when polar ice melts and the dark seawater beneath it is exposed?
Answer: The water absorbs more heat, so warming increases
💡 White ice reflects most of the sun's rays, while dark water absorbs them, so melting speeds up even more melting.
Q32: Above which region was the famous "ozone hole" discovered?
Answer: Antarctica
💡 In the 1980s, scientists discovered severe thinning of the ozone above Antarctica that recurs every spring there.
Q33: Which of these trees is native to the Arabian Peninsula and tolerates drought?
Answer: Sidr (jujube tree)
💡 The sidr (Christ's thorn jujube) is a native tree that tolerates heat and little water, so it is preferred, along with the talh (acacia) and ghaf trees, in tree-planting projects.
Q34: What is meant by a carbon footprint?
Answer: The amount of greenhouse gases produced by a person's or a product's activity
💡 A carbon footprint grows as we use more fuel and electricity, and it can be reduced by saving energy and using clean transportation.
Q35: Why do we see lightning before we hear thunder?
Answer: Because light is much faster than sound
💡 Lightning and thunder happen together, but light reaches us almost instantly, while sound travels about one kilometer every 3 seconds.
Q36: When can we see a rainbow?
Answer: When the sun is behind us and there are raindrops in front of us
💡 Raindrops bend and reflect sunlight, splitting it into its colors, and we only see a rainbow with the sun behind us.
Q37: Which instrument measures the humidity of the air?
Answer: The hygrometer
💡 A hygrometer measures the amount of water vapor in the air, which is important information for forecasting fog and rain.
Q38: What is the difference between weather and climate?
Answer: Weather is the state of the atmosphere over a short time, and climate is its average over many years
💡 The weather may be rainy today in a city with a dry climate, because climate describes the average conditions over decades.
Q39: Which bird went extinct in the 17th century on the island of Mauritius and became a symbol of extinction?
Answer: The dodo
💡 The dodo was a flightless bird that went extinct after humans reached its island, because of hunting and the animals they brought with them.
Q40: When do we say a species has gone "extinct"?
Answer: When its last individual on Earth dies
💡 Extinction is final and cannot be undone, which is why reserves work to protect species before their numbers reach zero.
Q41: What is meant by biodiversity?
Answer: The variety of living things, their species, and their environments
💡 Biodiversity includes the variety of species, genes, and environments, and the greater it is, the stronger an environment is against change.
Q42: Which international organization publishes the "Red List" of threatened species?
Answer: The International Union for Conservation of Nature (IUCN)
💡 The International Union for Conservation of Nature classifies organisms by their risk of extinction, listing threatened species in categories, the most severe being "Critically Endangered."
Q43: The Arabian oryx disappeared from the wild in the 1970s. How did it return?
Answer: By breeding it in captivity and then releasing it into reserves
💡 The oryx was bred in zoos and specialized centers and then released into reserves, including the 'Uruq Bani Ma'arid Reserve, becoming a successful example of saving a species.
Q44: Which endangered predator is the Kingdom breeding in specialized centers in preparation for returning it to the wild?
Answer: The Arabian leopard
💡 The Arabian leopard is one of the rarest big cats in the world, and the Kingdom is breeding it in captivity to save it from extinction and return it to its mountain habitats.
Q45: Near which city is the King Abdulaziz Royal Reserve located?
Answer: Riyadh
💡 The King Abdulaziz Royal Reserve lies north of Riyadh and includes famous rawdahs (green meadows), such as Rawdat Khuraim.
Q46: How many trees does the Saudi Green Initiative aim to plant inside the Kingdom?
Answer: 10 billion trees
💡 The initiative aims to plant 10 billion trees across the Kingdom over the coming decades to rehabilitate vast areas of land.
Q47: In which year was the Saudi Green Initiative announced?
Answer: 2021
💡 Crown Prince Mohammed bin Salman announced the Saudi Green Initiative in 2021 to increase vegetation cover, reduce emissions, and protect the environment.
Q48: What is the benefit of green belts of trees around desert cities?
Answer: They block drifting sand and reduce dust
💡 Trees slow down the wind, reducing drifting sand and dust, and they also cool the air and provide shade.
Q49: What is desertification?
Answer: Land degradation in dry areas until it loses its fertility and plants
💡 Desertification does not just mean natural deserts expanding; it means land losing its ability to produce because of drought and human activity.
Q50: Which of the following energy sources is non-renewable?
Answer: Coal
💡 Coal formed from plant remains over millions of years and does not renew as fast as we use it, while the sun and wind never run out.
Q51: Which international agreement was adopted in 2015 to limit the rise in Earth's temperature?
Answer: The Paris Agreement
💡 In Paris in 2015, countries agreed to keep global warming well below 2 degrees Celsius compared with pre-industrial times, and to strive to limit it to 1.5 degrees.
Q52: Which international agreement gradually phased out the use of ozone-depleting substances?
Answer: The Montreal Protocol
💡 The Montreal Protocol was signed in 1987 and is considered one of the most successful environmental agreements, because the ozone layer began to recover after it.
Q53: Which substances, once used in refrigerators and spray cans, became known for destroying the ozone layer?
Answer: Chlorofluorocarbons (CFCs)
💡 These compounds rise high into the atmosphere and release chlorine, which breaks apart ozone molecules, so their use was banned.
Q54: In which layer of the atmosphere is most of the ozone found?
Answer: The stratosphere
💡 Most ozone is in the stratosphere, the layer above the one we live in, where weather happens.
Q55: What is the benefit of the ozone layer?
Answer: It absorbs most of the harmful ultraviolet rays coming from the sun
💡 The ozone layer protects living things from most of the ultraviolet rays that burn skin and harm eyes and plants.
Q56: Without the natural greenhouse effect, what would the Earth be like?
Answer: Much colder and hard to live on
💡 Atmospheric gases trap some of the heat, keeping the Earth warm and fit for life; the problem is their increase due to human activity.
Q57: What is the most abundant gas in Earth's atmosphere?
Answer: Nitrogen
💡 Nitrogen makes up about 78% of the air and oxygen about 21%, while the rest is small amounts of gases, including carbon dioxide.
Q58: Which greenhouse gas comes from rice fields, livestock farming, and landfills?
Answer: Methane
💡 Bacteria that live without oxygen produce methane in flooded rice fields, in livestock stomachs, and in buried waste.
Q59: Which gas is the biggest contributor to warming caused by human activity?
Answer: Carbon dioxide
💡 Burning coal, oil, and gas releases huge amounts of carbon dioxide, which traps heat in the atmosphere.
Q60: Scientifically speaking, what is fog?
Answer: A low cloud touching the Earth's surface
💡 Fog is tiny water droplets suspended in the air near the ground; it is really a very low cloud.
Q61: Match each stage of the water cycle with its meaning:
Answer: Evaporation ↔ Water turning into vapor through heat, Condensation ↔ Vapor turning into tiny droplets, Precipitation ↔ Water falling from clouds as rain, hail, or snow, Transpiration ↔ Water vapor leaving plant leaves
💡 These stages repeat constantly, moving water between the seas, the air, the land, and plants.
Q62: Match each sea animal with its special feature:
Answer: Octopus ↔ Has 3 hearts, Seahorse ↔ The male carries the eggs until they hatch, Starfish ↔ Moves with hundreds of tiny tube feet, Dolphin ↔ Finds its prey using echoes
💡 Every sea creature has amazing abilities that help it survive, from the octopus's three hearts to the dolphin's echolocation.
Q63: Match each waterway with the two bodies of water it connects:
Answer: The Bab al-Mandab Strait ↔ The Red Sea and the Gulf of Aden, The Suez Canal ↔ The Red Sea and the Mediterranean Sea, The Strait of Gibraltar ↔ The Mediterranean Sea and the Atlantic Ocean, The Strait of Hormuz ↔ The Arabian Gulf and the Gulf of Oman
💡 Straits and canals are narrow passages that ships travel through; some are natural, like Bab al-Mandab, and some are dug, like the Suez Canal.
Q64: Arrange the stages of a sea turtle's life:
Answer: The female digs in the beach sand and lays her eggs then The eggs hatch after a few weeks then The hatchlings crawl toward the sea then The turtles grow up in the sea over many years
💡 The eggs are left in the warm sand until they hatch, then the hatchlings hurry to the sea, where they spend most of their lives.
Q65: Arrange the stages of the water cycle, starting from the sea:
Answer: Water evaporates with the sun's heat then The vapor condenses and clouds form then The water falls as rain then The water flows and collects in seas and wells
💡 Water rises as vapor, then cools and condenses into clouds, and returns to the ground as rain, flowing into the seas or seeping underground.
Q66: Arrange this marine food chain from the producer to the top predator:
Answer: Phytoplankton then Zooplankton then Sardines then Tuna
💡 Zooplankton eat phytoplankton, sardines eat zooplankton, and then tuna hunt the sardines.
Q67: Choose every action that reduces plastic pollution in the seas:
Answer: Carrying a cloth bag when shopping, Using a refillable water bottle, Collecting trash from the beach
💡 Every piece of plastic we do without or pick up never reaches the sea, while balloons and abandoned bags often end up in the water.
Q68: Choose all the producers in marine food chains:
Answer: Phytoplankton, Seagrass, Seaweed
💡 Phytoplankton, seagrass, and seaweed make their food from sunlight, while the shark and the crab are consumers.
Q69: Choose everything that harms coral reefs:
Answer: Rising seawater temperature, Throwing trash and plastic, Stepping on coral and breaking it
💡 Heat, pollution, and breakage harm coral, while fish are part of its environment, and mangrove trees protect the coast and trap sediment.
Q70: Choose all the countries that border the Arabian Gulf:
Answer: Kuwait, Qatar, Bahrain
💡 Kuwait, Qatar, and Bahrain are Arabian Gulf countries, while Jordan's outlet is on the Gulf of Aqaba and Sudan is on the Red Sea.
Q71: Choose all the countries that border the Red Sea:
Answer: Saudi Arabia, Egypt, Sudan
💡 Countries bordering the Red Sea include Saudi Arabia, Egypt, Sudan, and Yemen, while Kuwait is on the Arabian Gulf and Oman is on the Arabian Sea and the Gulf of Oman.
Q72: Choose all the sea animals that are mammals:
Answer: The blue whale, The dolphin, The dugong
💡 The whale, dolphin, and dugong breathe with lungs and nurse their young, while the whale shark is a fish and the turtle is a reptile.
Q73: Groundwater never runs out, no matter how much we pump.
Answer: False ✖
💡 Some groundwater built up over thousands of years and renews very slowly, so pumping too much depletes it.
Q74: The blue whale feeds mainly on small shrimp-like creatures called krill.
Answer: True ✔
💡 The blue whale gulps huge amounts of water and filters it through plates in its mouth to catch krill.
Q75: Plastic bags break down in the sea within a few days.
Answer: False ✖
💡 Plastic stays in the environment for a very long time, breaking into tiny pieces instead of disappearing.
Q76: The water we drink today has been on Earth for a very long time and keeps moving through the water cycle.
Answer: True ✔
💡 The amount of water on Earth is almost constant; it has been evaporating, condensing, and falling again and again for millions of years.
Q77: Coral is a plant that lives on the seabed.
Answer: False ✖
💡 Coral is an animal from the cnidarian group (stinging animals); it lives in colonies and catches tiny organisms with its tentacles.
Q78: The Red Sea is one of the saltiest seas in the world.
Answer: True ✔
💡 The Red Sea is very salty because of high evaporation, little rainfall, and no large rivers flowing into it.
Q79: The temperature of the sand determines whether sea turtle eggs hatch into males or females.
Answer: True ✔
💡 In sea turtles, warmer sand tends to produce females and cooler sand produces males, so rising temperatures affect their numbers.
Q80: The whale shark is a whale, a mammal.
Answer: False ✖
💡 Despite its name, the whale shark is a fish, a type of shark that breathes with gills; it got its name because of its huge size.
Q81: The dolphin is a fish that breathes with gills.
Answer: False ✖
💡 The dolphin is a mammal; it breathes air with its lungs and nurses its young. It is not a fish.
Q82: What causes a "red tide" that can kill fish in the sea?
Answer: A huge bloom of tiny algae in the water
💡 When certain tiny algae multiply rapidly, they can color the water and use up the oxygen or release toxins that harm sea life.
Q83: Which sea animal has 8 arms and can change its color to hide?
Answer: The octopus
💡 The octopus has 8 arms covered with suckers, and it quickly changes the color of its skin to look like the rocks and sand around it.
Q84: What is the largest coral reef system in the world, located off the coast of Australia?
Answer: The Great Barrier Reef
💡 The Great Barrier Reef stretches for thousands of kilometers off northeastern Australia and includes thousands of reefs and small islands.
Q85: Why is seawater salty?
Answer: Because rivers and rain carry salts from rocks to it, then the water evaporates and the salt remains
💡 Flowing water dissolves small amounts of salt from rocks and carries it to the sea, and when seawater evaporates the salt stays behind and builds up over a long time.
Q86: What is the main cause of the tides in the seas?
Answer: The moon's gravity
💡 The moon pulls on the seas' water, so it rises and falls regularly every day; the sun has a smaller effect.
Q87: Why does a person float more easily in seawater than in a freshwater pool?
Answer: Because salt water is denser
💡 Dissolved salts increase the water's density, so salt water pushes objects upward with greater force.
Q88: What makes touching a jellyfish painful?
Answer: Stinging cells in its tentacles
💡 A jellyfish's tentacles have stinging cells that fire tiny venomous needles to paralyze its small prey.
Q89: Which sea animal releases a cloud of dark ink to escape its enemies?
Answer: The squid
💡 The squid releases dark ink that confuses the predator and blocks its view, then takes the chance to escape.
Q90: What happens to a shark when one of its teeth falls out?
Answer: A new tooth grows in its place
💡 Sharks have rows of spare teeth, so whenever a tooth falls out, another moves forward to take its place.
Q91: How does an oil spill at sea harm seabirds?
Answer: It sticks to their feathers so they can no longer keep them warm or afloat
💡 Oil-soaked feathers stick together and can no longer trap warm air, so the birds get cold and cannot float or fly.
Q92: Where is most of the fresh water on planet Earth found?
Answer: In ice and glaciers
💡 Most fresh water is frozen in polar ice and glaciers, followed by groundwater, while rivers and lakes hold only a small share.
Q93: Where is most of the water on planet Earth found?
Answer: In the seas and oceans
💡 Most of Earth's water is salt water in the seas and oceans, and fresh water is only a small part of it.
Q94: Which gas do the seas absorb from the air, making their water more acidic?
Answer: Carbon dioxide
💡 The more carbon dioxide there is in the air, the more the seas absorb, making them more acidic, which harms coral and shells.
Q95: Which trees grow in salt water along the coasts of the Red Sea and the Arabian Gulf?
Answer: Mangrove trees (qurm)
💡 Mangrove trees tolerate salt and grow in shallow water; their roots protect the shores and shelter young fish.
Q96: Among which creature's tentacles does the clownfish live without being stung?
Answer: The sea anemone
💡 The clownfish's body is covered with mucus that protects it from the sea anemone's stings, so it shelters among them from its enemies.
Q97: Which marine mammal grazes on seagrass in the Red Sea and the Arabian Gulf?
Answer: The dugong (sea cow)
💡 The dugong is a gentle marine mammal that feeds on seagrass in shallow water, and it is an endangered species that needs protection.
Q98: What do we call an animal that hunts other animals to eat them?
Answer: A predator
💡 A predator hunts its prey, like a shark hunting fish, while a herbivore eats only plants.
Q99: What role do bacteria and fungi play in the food chain?
Answer: They break down the remains of dead organisms and return their elements to the environment
💡 Decomposers break down the remains of dead organisms so their materials return to the soil and water, where producers can use them again.
Q100: What do we call an organism that makes its own food in a food chain?
Answer: A producer
💡 Plants and algae are producers because they make their food by photosynthesis, while animals are consumers that eat other living things.
Q101: What is the primary food producer in most marine food chains?
Answer: Phytoplankton
💡 Phytoplankton are tiny organisms that make their food from sunlight, and the rest of the chain depends on them.
Q102: What are microplastics?
Answer: Very small plastic pieces smaller than 5 millimeters
💡 Plastic in the sea breaks down into tiny pieces that sea creatures swallow, and they pass along the food chain.
Q103: Which of these Saudi cities lies on the Arabian Gulf?
Answer: Dammam
💡 Dammam lies on the Arabian Gulf coast in the Eastern Province, while Jeddah, Yanbu, and Jazan are on the Red Sea coast.
Q104: Which gulf branches off the northern Red Sea and is overlooked by the Saudi city of Haql?
Answer: The Gulf of Aqaba
💡 In the north, the Red Sea branches into two gulfs, the Gulf of Aqaba and the Gulf of Suez, and Haql overlooks the Gulf of Aqaba.
Q105: Between which two continents does the Red Sea lie?
Answer: Asia and Africa
💡 The Red Sea separates the Arabian Peninsula in Asia from East Africa.
Q106: Which desalination method pushes seawater at high pressure through fine membranes that hold back the salt?
Answer: Reverse osmosis
💡 In reverse osmosis, salt water is pressed against a very fine membrane that lets water molecules pass through and holds back most of the salts.
Q107: What is meant by water desalination?
Answer: Removing salts from seawater to make it drinkable
💡 Desalination separates the salts from seawater, and the Gulf countries rely heavily on it for drinking water.
Q108: What is the rock layer that holds groundwater in its pores called?
Answer: An aquifer
💡 An aquifer is a layer of porous or sandy rock where water collects and can be pumped up through wells.
Q109: What is groundwater?
Answer: Water stored beneath the Earth's surface between rocks and soil
💡 Rainwater seeps through the soil and collects in the pores of rocks underground, and we extract it by digging wells.
Q110: What energy source drives the water cycle in nature?
Answer: The sun
💡 The sun's heat evaporates water from the seas and the land, starting the water's journey to the clouds and then back to the ground as rain.
Q111: What is the largest animal known to have lived on Earth?
Answer: The blue whale
💡 The blue whale is the largest animal known to scientists; it can be more than 25 meters long, and the water helps support its huge body.
Q112: Where do sea turtles lay their eggs?
Answer: In holes on sandy beaches
💡 The female comes out onto the beach at night and digs a hole in the sand, lays her eggs in it, covers them, and returns to the sea.
Q113: Why do sea turtles sometimes swallow plastic bags?
Answer: Because they think they are jellyfish
💡 A bag floating in the water looks like a jellyfish, which turtles eat, so they swallow it and it blocks their digestive system.
Q114: What does the whale shark eat, despite its huge size?
Answer: Plankton and small fish that it filters from the water
💡 The whale shark opens its wide mouth and filters the water to catch plankton and small fish. It is gentle and does not attack humans.
Q115: What is the largest fish in the world?
Answer: The whale shark
💡 The whale shark is a fish that breathes with gills and is the largest of all fish. The blue whale is bigger, but it is a mammal, not a fish.
Q116: How does a dolphin breathe?
Answer: With its lungs, through an opening on top of its head
💡 A dolphin rises to the surface to breathe air through an opening on top of its head, then holds its breath and dives.
Q117: Which group of animals does the whale belong to?
Answer: Mammals
💡 The whale is a mammal: it breathes air with its lungs, gives birth to live young, and nurses them with milk.
Q118: What organisms live inside coral and supply it with food?
Answer: Tiny algae that make food from sunlight
💡 Microscopic algae live inside coral, making food through photosynthesis and giving it its colors, while the coral provides them with shelter.
Q119: What is the main cause of coral bleaching?
Answer: Rising seawater temperature
💡 When the water gets too warm, corals expel the tiny colorful algae living inside them and turn white, and they may die if it lasts too long.
Q120: What are coral reefs made of?
Answer: Colonies of tiny sea animals
💡 Corals are tiny animals called polyps that build limestone skeletons around themselves, which pile up over the years to form reefs.
Q121: Match each animal with its group:
Answer: Falcon ↔ Birds, Dabb lizard ↔ Reptiles, Arabian oryx ↔ Mammals, Frog ↔ Amphibians
💡 Birds have feathers, reptiles have scaly skin, mammals nurse their young, and amphibians' young live in water and then move onto land.
Q122: Match each part of the palm tree with one of its traditional uses:
Answer: Leaflets (khus) ↔ Making baskets and mats, Palm fiber (lif) ↔ Making ropes, Trunk ↔ Pillars and roofs of houses, Date pits ↔ Animal feed
💡 Our ancestors made use of every part of the palm tree, so almost nothing from it was thrown away.
Q123: Arrange a plastic bottle's journey through recycling:
Answer: We put it in the recycling bin then It is collected and sorted with similar items then It is shredded and melted at the factory then A new product is made from it
💡 The recycling journey starts with us at home, then the materials are sorted at factories and processed to become raw material for a new product.
Q124: Arrange the stages of a frog's life from the beginning:
Answer: Egg then Tadpole swimming with its tail then Young frog with legs and a tail then Adult frog
💡 Frog eggs hatch in water into tadpoles that breathe with gills, then they grow legs and their tails disappear until they become adult frogs.
Q125: Arrange these stages of a date's ripening, from first to last:
Answer: Busr (firm, colored dates) then Rutab (soft, moist dates) then Tamr (fully dried dates)
💡 After the fruit grows big and green, it changes color and becomes busr (firm), then softens into rutab (soft and moist), then dries and reaches full sweetness as tamr (dried dates).
Q126: Choose all the animals that live in the Arabian Peninsula's desert:
Answer: The camel, The Arabian oryx, The dabb lizard
💡 The camel, the oryx, and the dabb have adapted to the desert's heat and lack of water, while the penguin comes from the cold south and the kangaroo from Australia.
Q127: Choose all the materials that can be recycled:
Answer: Paper and cardboard, Glass, Aluminum cans
💡 Paper, glass, and aluminum are among the easiest materials to recycle, but used diapers are not recycled because they are soiled.
Q128: Choose everything a plant needs to make its food:
Answer: Sunlight, Water, Carbon dioxide
💡 Plants make their food through photosynthesis, using sunlight, water, and carbon dioxide from the air.
Q129: Choose every habit that helps save water:
Answer: Taking quick showers, Fixing a dripping faucet, Watering plants early in the morning or in the evening
💡 Watering when it is cool reduces evaporation, and a dripping faucet wastes a large amount over the course of a day.
Q130: Choose every habit that saves electricity at home:
Answer: Turning off the lights when leaving a room, Setting the air conditioner to a moderate temperature, Unplugging devices we are not using
💡 Every device running when it is not needed uses electricity, and leaving the fridge door open makes it work harder to cool what is inside.
Q131: Choose all the varieties that are famous dates:
Answer: Sukkari, 'Ajwa, Khalas
💡 Sukkari, 'Ajwa, and Khalas are among the most famous dates, while Gala is a variety of apple and Cavendish is a variety of banana.
Q132: The dabb (spiny-tailed lizard) can live a long time without drinking water.
Answer: True ✔
💡 The dabb gets most of the water it needs from the plants it eats, which is why it can endure thirst in the desert.
Q133: A cactus needs a lot of watering every day.
Answer: False ✖
💡 The cactus is a desert plant that stores water, and too much watering can rot its roots.
Q134: A falcon sees faraway things much more clearly than a human does.
Answer: True ✔
💡 A falcon's eyesight is very sharp, so it can spot small prey from a great height.
Q135: Glass can be recycled many times.
Answer: True ✔
💡 Used glass is melted and reshaped again and again, so recycling it saves sand and energy.
Q136: Polar bears and penguins live together at the same pole.
Answer: False ✖
💡 The polar bear lives around the North Pole, and almost all penguins live in the Southern Hemisphere, so they never meet in the wild.
Q137: Palm trees are male and female, and dates grow on the female palm.
Answer: True ✔
💡 The male palm produces pollen, and the female is the one that bears dates after being pollinated.
Q138: Bats are blind and cannot see anything.
Answer: False ✖
💡 Bats see with their eyes, and many of them also use echoes (echolocation) to find their way and their prey in the dark.
Q139: All the deserts in the world are hot.
Answer: False ✖
💡 A desert is defined by little rain, not by heat, and Antarctica is a very cold desert.
Q140: The camel stores water in its hump.
Answer: False ✖
💡 This is a common mistake: the hump is a fat store, while the camel keeps water in its body and reduces how much it loses.
Q141: How can we make use of vegetable peels and food scraps instead of throwing them away?
Answer: We make compost from them to feed the soil
💡 Food and plant scraps break down into rich organic compost that benefits plants and reduces waste.
Q142: Which animal's fur turns white in winter so it can hide in the snow?
Answer: The Arctic fox
💡 The Arctic fox changes the color of its fur between summer and winter, looking white in the snow so its prey and enemies cannot easily see it.
Q143: Which polar animal has two long tusks and lives on the ice near the sea?
Answer: The walrus
💡 The walrus is a marine mammal that lives in the Arctic regions and uses its long tusks to pull its body up onto the ice.
Q144: What is the long sleep that some animals take throughout the winter called?
Answer: Hibernation
💡 During hibernation, animals slow down their heartbeat and breathing and live off their body fat until warm weather returns.
Q145: Which animal lives near forest rivers and builds dams out of branches?
Answer: The beaver
💡 The beaver cuts branches with its strong teeth and builds dams with them across rivers, creating ponds where many creatures live.
Q146: On which continent do kangaroos live in the wild?
Answer: Australia
💡 The kangaroo is a marsupial that lives in Australia, and the mother carries her baby in a pouch on her belly.
Q147: What is a female camel called?
Answer: A she-camel (naqah)
💡 A female camel is called a naqah (she-camel), and her milk has been a well-known food for desert people since ancient times.
Q148: How can the Arabian oryx go a long time without drinking water?
Answer: It gets water from plants and dew
💡 The oryx eats plants that hold moisture and dew at night and early in the morning, getting most of the water it needs from them.
Q149: Which of these desert animals is active at night to escape the daytime heat?
Answer: The jerboa
💡 The jerboa is a small rodent that hops on its long hind legs. It hides in its burrow during the day and comes out at night when it is cooler.
Q150: What most distinguishes a desert from other environments?
Answer: Very little rain
💡 A desert is defined by how little rain falls on it, which is why it can be either hot or cold.
Q151: What color is a polar bear's skin under its white fur?
Answer: Black
💡 A polar bear's skin is black and absorbs the sun's heat, while its hairs are transparent and look white to us because they reflect light.
Q152: What helps the polar bear endure extreme cold?
Answer: A thick layer of fat and dense fur
💡 Under the polar bear's skin is a thick layer of fat, and it is covered with dense fur that traps heat so it does not escape into the cold.
Q153: Which light bulb uses less electricity to give the same light?
Answer: An LED bulb
💡 LED bulbs turn most of their electricity into light, while an incandescent bulb wastes most of its energy as heat.
Q154: Which habit saves water while brushing your teeth?
Answer: Turning off the faucet while brushing
💡 A running faucet wastes many liters in just a few minutes, so turning it off while brushing saves a lot of water.
Q155: What does recycling mean?
Answer: Turning waste into new materials we can use
💡 Recycling turns used materials such as paper and glass into new products, so there is less waste and we conserve resources.
Q156: Where do we put empty aluminum drink cans?
Answer: In the recycling bin
💡 Aluminum cans are melted down and made into new cans, which saves energy and reduces the need for mining.
Q157: How does a camel protect its nose from sand during a storm?
Answer: It can close its nostrils
💡 A camel can close its nostrils so sand cannot get in, and open them to breathe.
Q158: Why does the camel have long, thick eyelashes?
Answer: To protect its eyes from sand
💡 The camel has two rows of long eyelashes that keep grains of sand out of its eyes during storms.
Q159: What helps the desert fennec fox get rid of heat?
Answer: Its big ears
💡 The fennec's big ears are full of blood vessels that release body heat into the air, and they also help it hear its prey.
Q160: Which part of a plant absorbs water from the soil?
Answer: The roots
💡 Roots spread through the soil and absorb water and minerals, then the stem carries them to the leaves.
Q161: Which gas do plants release into the air while making their food?
Answer: Oxygen
💡 In photosynthesis, plants take in carbon dioxide and release the oxygen we breathe.
Q162: Which of these animals lives in rainforests?
Answer: The orangutan
💡 The orangutan is a large ape that lives in the trees of the rainforests on the islands of Borneo and Sumatra.
Q163: Why are cactus leaves shaped like spines?
Answer: To reduce water loss and protect it from animals
💡 Spines have a very small surface, so very little water evaporates from them, and they also stop thirsty animals from eating the cactus.
Q164: Which desert plant stores water in its thick stem and is covered with spines?
Answer: The cactus
💡 The cactus stores water in its fleshy stem, so it can survive drought for many months.
Q165: What is an oasis?
Answer: A place in the desert with water and plants
💡 An oasis is a green spot in the middle of the desert with water from springs or underground wells, so palm trees grow there and people settle around it.
Q166: Which Saudi oasis was added to the UNESCO World Heritage List in 2018?
Answer: Al-Ahsa Oasis
💡 Al-Ahsa Oasis was inscribed as World Heritage for its palm groves, water springs, irrigation canals, and long history.
Q167: Which Saudi region is famous for Sukkari dates?
Answer: Qassim
💡 Sukkari dates are among the most famous dates of the Qassim region, and they were named for their sweet taste (sukkar means sugar).
Q168: Which Saudi city is famous for 'Ajwa dates?
Answer: Madinah
💡 'Ajwa is a soft, dark date that Madinah has been famous for since ancient times.
Q169: What is the name of the soft, white, edible heart at the top of the palm tree?
Answer: Palm heart (jummar)
💡 The jummar is the white core at the top of the palm, and it is where the palm's new leaves grow from.
Q170: What is the cluster that carries the dates on a palm tree called?
Answer: Date bunch ('idhq)
💡 The 'idhq (date bunch) is the cluster from which the dates hang, and a single palm carries several bunches each season.
Q171: What are the long leaves of the palm tree called?
Answer: Fronds (sa'af)
💡 Sa'af (fronds) are the long leaves of the palm tree, and leaflets called khus branch off from them.
Q172: What is the peregrine falcon famous for among animals?
Answer: It is the fastest animal when diving at its prey
💡 The peregrine folds its wings and dives from above at more than 300 kilometers per hour, making it the fastest known animal when diving.
Q173: Which group of birds does the falcon belong to?
Answer: Birds of prey
💡 The falcon is a bird of prey: it has a hooked beak, sharp talons, and strong eyesight that help it hunt.
Q174: What does the adult dabb (spiny-tailed lizard) mostly eat?
Answer: Plants
💡 The adult dabb mostly eats desert plants and grasses, while the young may eat some insects.
Q175: Which white Arabian animal with two long, straight horns lives in the desert?
Answer: The Arabian oryx
💡 The Arabian oryx (also called the wild cow) is white with two long, straight horns, and its light color reflects the sun's rays, helping it bear the desert heat.
Q176: Which animal is called "the ship of the desert"?
Answer: The camel
💡 The camel is called the ship of the desert because it crosses long distances over sand carrying people and goods, just as ships carry them across the sea.
Q177: What does a camel store in its hump?
Answer: Fat
💡 A camel's hump is a fat store that it draws energy from when food is scarce. Its ability to go without water comes from its body's ability to conserve water.
Q178: Which of these birds lives in Antarctica?
Answer: The emperor penguin
💡 The emperor penguin is a flightless bird that lives in Antarctica and swims skillfully to catch fish.
Q179: Where does the polar bear live?
Answer: Around the North Pole
💡 The polar bear lives only in the frozen regions around the North Pole; there are no polar bears in Antarctica.
Q180: A turtle can come out of its shell and leave it behind.
Answer: False ✖
💡 A turtle's shell is part of its body and is attached to its bones, so it cannot come out of it, but it pulls its head and legs inside to protect itself.
Q181: A chicken's house is called a coop.
Answer: True ✔
💡 A coop is a small house for chickens on a farm, where the hens sleep and lay their eggs safely.
Q182: What is the sound a cow makes called?
Answer: Mooing
💡 Mooing is the sound a cow makes, and we hear it when she calls her calf or is hungry.
Q183: Choose all the animals that can fly:
Answer: The sparrow, The bat, The butterfly
💡 The sparrow is a bird, the bat is a mammal with two wings, and the butterfly is an insect, and they can all fly. The rabbit and the turtle live on the ground.
Q184: Put these animals in order from smallest to largest:
Answer: The ant then The cat then The horse then The elephant
💡 The ant is a very small insect, the cat is bigger, the horse is bigger than the cat, and the elephant is the largest animal living on land.
Q185: Whiskers help a cat sense what is around it.
Answer: True ✔
💡 A cat's whiskers are very sensitive. The cat uses them to feel nearby things and to know whether it can fit through a narrow space.
Q186: What is the sound a bee makes called?
Answer: Buzzing
💡 Buzzing is the sound a bee makes, and it comes from the very fast flapping of its wings.
Q187: A duck has paddle-like feet that help it swim.
Answer: True ✔
💡 Between the toes of a duck's foot is thin skin that makes it like a paddle, so it pushes the water with its feet and swims easily.
Q188: What does a hen give us?
Answer: Eggs
💡 The hen gives us eggs, and eggs are a healthy food with much of what our bodies need to grow.
Q189: A bull gets angry when it sees the color red.
Answer: False ✖
💡 A bull cannot tell the color red well; what excites it is the movement of the cloth in front of it, not its color.
Q190: What is a baby cat called?
Answer: A kitten
💡 A baby cat is called a kitten. It is born with its eyes closed and needs its mother's milk and warmth.
Q191: How many humps does the Arabian camel have?
Answer: 1
💡 The Arabian camel has one hump, while the Bactrian camel, which lives in Central Asia, has two humps.
Q192: What is the sound a sheep makes called?
Answer: Bleating
💡 Bleating is the sound a sheep makes, and we hear it when a little lamb calls its mother.
Q193: Which of these animals can doze while standing up?
Answer: The horse
💡 A horse's legs have joints that lock by themselves, so it can doze standing up without falling over, but it lies down when it wants deep sleep.
Q194: Which very slow animal spends most of its life hanging from tree branches?
Answer: The sloth
💡 The sloth moves very slowly and hangs from branches with its long, curved claws. It eats tree leaves and even sleeps hanging.
Q195: What do many spiders spin to catch insects?
Answer: A web
💡 A spider makes a thin, sticky thread from its body and spins a web with it. When an insect flies into it and gets stuck, the spider catches it.
Q196: Which animal looks like a horse and has black and white stripes on its body?
Answer: The zebra
💡 The zebra lives in Africa, and its black and white stripes are different on every zebra, like a fingerprint.
Q197: Which of these animals carries its shell on its back wherever it goes?
Answer: The snail
💡 The snail has a coiled shell on its back that it hides in when it is scared or when it gets very hot, and it carries it wherever it goes.
Q198: What is a rabbit's main food?
Answer: Grass and hay
💡 The rabbit is a herbivore. Its main food is grass and hay, and it also eats a few vegetables.
Q199: What is a lion's home called?
Answer: A den
💡 A lion's home is called a den. A nest is for birds, a coop is for chickens, and a hive is for bees.
Q200: A sparrow builds a nest out of straw and feathers.
Answer: True ✔
💡 The sparrow gathers straw, small twigs and feathers to build a nest where it lays its eggs and protects its young.
Q201: What is the sound a snake makes called?
Answer: Hissing
💡 Hissing is the sound a snake makes. It sounds like "ssss" and the snake makes it when it is angry, to warn anyone who comes close.
Q202: Which small animal has a back covered in spines and curls up like a ball when it is scared?
Answer: The hedgehog
💡 The hedgehog's back is covered in many spines. When it is scared, it curls up into a prickly ball that is hard for other animals to grab.
Q203: What is the giant panda's favorite food?
Answer: Bamboo
💡 The giant panda spends most of its day eating bamboo, which is almost its only main food.
Q204: Where does a bee live?
Answer: In a hive
💡 Bees live together in a hive, where they build small six-sided wax cells to store their honey.
Q205: A bee makes honey from tree leaves.
Answer: False ✖
💡 A bee makes honey from flower nectar, a sweet liquid inside the flower that it sucks up and carries to the hive.
Q206: What is a baby dog called?
Answer: A puppy
💡 A baby dog is called a puppy. It is born with its eyes closed and opens them after about two weeks.
Q207: What is the largest bird in the world?
Answer: The ostrich
💡 The ostrich is the largest and heaviest bird. It cannot fly, but it runs very fast on its long, strong legs.
Q208: What is the sound a wolf makes called?
Answer: Howling
💡 Howling is the sound a wolf makes. A wolf howls to communicate with the other wolves in its pack.
Q209: What does the silkworm give us?
Answer: Silk
💡 The silkworm wraps itself in a cocoon made of a long, thin thread, and this thread is used to make soft silk fabric.
Q210: Which animal changes the color of its skin and moves each of its eyes on its own?
Answer: The chameleon
💡 The chameleon is an amazing reptile that changes the color of its skin, and it can look forward with one eye and backward with the other at the same time.
Q211: What is the sound a sparrow makes called?
Answer: Chirping
💡 Chirping is the sound a sparrow makes, and we often hear it early in the morning.
Q212: A butterfly tastes its food with its feet.
Answer: True ✔
💡 A butterfly's feet have tiny tasting organs, so when it lands on a flower it can tell whether it has sweet nectar.
Q213: A snake has small legs that it walks on.
Answer: False ✖
💡 A snake has no legs. It slithers along the ground by moving the muscles of its long body and the scales on its belly.
Q214: Which of these animals digs a burrow underground and lives in it?
Answer: The rabbit
💡 The wild rabbit digs a burrow underground where it hides from predators and raises its young.
Q215: Most owls hunt for their food at night.
Answer: True ✔
💡 The owl sees and hears well in the dark, so it comes out at night to hunt mice and insects, and sleeps during the day.
Q216: What is a baby hen called?
Answer: A chick
💡 A chick is a baby hen. It comes out of the egg covered in soft yellow fluff and walks behind its mother.
Q217: What is the place where a horse lives on a farm called?
Answer: The stable
💡 The stable is the horse's home, where it eats and rests. The coop is for chickens, the hive is for bees, and the den is for the lion.
Q218: A baby goat is called a lamb.
Answer: False ✖
💡 A baby goat is called a kid, while a lamb is a baby sheep.
Q219: What is the sound a crow makes called?
Answer: Cawing
💡 Cawing is the sound a crow makes. The crow is a very clever black bird.
Q220: An ant can carry something much heavier than its own body.
Answer: True ✔
💡 The ant is small but very strong. It carries leaves and seeds many times heavier than itself and takes them back to its home.
Q221: What is the sound a frog makes called?
Answer: Croaking
💡 Croaking is the sound a frog makes, and we often hear it near water at night.
Q222: What is a baby sheep called?
Answer: A lamb
💡 A baby sheep is called a lamb. It stays close to its mother, drinking her milk until it grows up.
Q223: An ostrich buries its head in the sand when it is scared.
Answer: False ✖
💡 This is a common idea, but it is not true. When an ostrich is scared it runs very fast. It may lower its head near the ground to take care of its eggs, so someone watching from far away thinks it has buried it.
Q224: Bats are blind and cannot see anything.
Answer: False ✖
💡 Bats are not blind; they see with their eyes, and many bats also use the echoes of their sounds to find their way and hunt in the dark.
Q225: A cow eats meat like a lion.
Answer: False ✖
💡 A cow eats only grass and plant feed, so it is a herbivore, while the lion eats meat.
Q226: A spider is an insect.
Answer: False ✖
💡 A spider is not an insect: it has 8 legs and a body made of 2 parts, while an insect like the ant has 6 legs and a body made of 3 parts.
Q227: What is the sound a camel makes called?
Answer: Grumbling
💡 Grumbling is the sound a camel makes. A camel grumbles when it is being loaded or told to kneel down.
Q228: A fish breathes underwater with its gills.
Answer: True ✔
💡 A fish has gills on both sides of its head that take in the air dissolved in water, so most fish can breathe underwater without coming up to the surface.
Q229: A female kangaroo carries her baby in a pouch on her belly.
Answer: True ✔
💡 A baby kangaroo is born very tiny, so it lives in its mother's warm pouch for months until it grows and can hop on its own.
Q230: Choose all the animals that give us milk:
Answer: The cow, The she-camel, The goat
💡 Cows, she-camels and goats nurse their young, and we drink their milk too. The hen gives us eggs, and the bee gives us honey.
Q231: What is the sound a dog makes called?
Answer: Barking
💡 Barking is the sound a dog makes. It barks when it sees a stranger, to guard the house and its owners.
Q232: What does a sheep give us?
Answer: Wool
💡 A sheep's wool is sheared every year without hurting it, then spun into yarn that we use to make warm clothes and rugs.
Q233: A bee helps flowers when it carries pollen from one flower to another.
Answer: True ✔
💡 When a bee visits flowers, a yellow dust called pollen sticks to its body. It carries it to other flowers, which then turn into fruits and seeds.
Q234: Match each animal to its sound:
Answer: The lion ↔ Roaring, The horse ↔ Neighing, The rooster ↔ Crowing, The donkey ↔ Braying
💡 Each animal sound has its own name: the lion roars, the horse neighs, the rooster crows in the morning, and the donkey brays.
Q235: How does an elephant drink water?
Answer: It sucks it up with its trunk, then pours it into its mouth
💡 An elephant's trunk is its long nose. It sucks up water with it, then lifts it and pours it into its mouth. It also sprays water on its body to cool off.
Q236: A penguin can fly in the sky.
Answer: False ✖
💡 The penguin is a bird with feathers and two wings, but it cannot fly. Its wings are like flippers that help it swim fast underwater.
Q237: What does a bee make?
Answer: Honey
💡 The bee collects sweet nectar from flowers, then turns it into delicious, healthy honey inside the hive.
Q238: What is the fastest running animal on land?
Answer: The cheetah
💡 The cheetah is the fastest land animal. It runs very fast for a short distance to catch its prey, then stops to rest.
Q239: What sound does a cat make?
Answer: Meowing
💡 Meowing is the sound a cat makes. We hear it when the cat is hungry or wants our attention.
Q240: A camel can go without water for many days in the desert.
Answer: True ✔
💡 A camel drinks a huge amount of water all at once and keeps it in its body, so it can go without water for many days in the desert heat.
Q241: What is the tallest animal in the world?
Answer: The giraffe
💡 The giraffe is the tallest animal on Earth. It can be more than 5 meters tall, so its long neck lets it reach the leaves of tall trees.
Q242: A hen feeds her chicks milk.
Answer: False ✖
💡 The hen is a bird that lays eggs, and the chick eats grain on its own after it hatches. Feeding milk to young is something mammals do, like cows and cats.
Q243: Which animal is called the "King of the Jungle" even though it lives on wide grassy plains?
Answer: The lion
💡 The lion is called the King of the Jungle because of its strength, majesty and loud roar, but it actually lives on the grassy plains (savanna) of Africa, not in thick forests.