Câu 1: What is the main cause of air pollution in cities?

A. Riding bicycles

B. Planting trees

C. Emissions from vehicles and factories

D. Doing homework

Câu 2: Which of the following is a renewable energy source?

A. Coal

B. Oil

C. Solar power

D. Natural gas

Câu 3: What is a natural disaster?

A. A school test

B. An environmental TV show

C. A sudden and extreme event caused by nature

D. A classroom activity

Câu 4: What should you do during an earthquake?

A. Run to the elevator

B. Stand near a window

C. Take cover under a strong table

D. Go outside and jump

Câu 5: The process of cutting down trees without replanting is called:

A. Recycling

B. Deforestation

C. Reforestation

D. Composting

Câu 6: What kind of pollution is caused by loud noise?

A. Water pollution

B. Land pollution

C. Noise pollution

D. Air pollution

Câu 7: Which human activity is harmful to the environment?

A. Recycling waste

B. Planting vegetables

C. Littering in public places

D. Using cloth bags

Câu 8: What is climate change?

A. A change in daily weather

B. A short summer

C. Long-term changes in temperature and weather patterns

D. A new school subject

Câu 9: What should we do with plastic bottles after use?

A. Throw them on the street

B. Burn them

C. Recycle or reuse them

D. Leave them in rivers

Câu 10: Which of the following is an effect of global warming?

A. More trees

B. Rising sea levels

C. Less sunlight

D. Cleaner air

Câu 11: What can individuals do to reduce water pollution?

A. Dump oil into drains

B. Throw batteries into rivers

C. Use natural cleaning products

D. Wash motorbikes in rivers

Câu 12: Which of the following is a greenhouse gas?

A. Oxygen

B. Carbon dioxide (CO₂)

C. Hydrogen

D. Nitrogen

Câu 13: A drought is:

A. Heavy rainfall

B. A long period without rain

C. A snowstorm

D. A lightning strike

Câu 14: What is the best way to save energy at home?

A. Leave lights on all day

B. Use fans and lights only when needed

C. Open all electronic devices

D. Use older appliances

Câu 15: Earthquakes are measured using:

A. Thermometers

B. Seismographs

C. Barometers

D. Telescopes

Câu 16: Which action helps reduce plastic waste?

A. Buying bottled water daily

B. Using plastic straws

C. Carrying a reusable water bottle

D. Ignoring recycling bins

Câu 17: Tsunamis are caused by:

A. Earthquakes under the sea

B. Tornadoes

C. Heavy winds

D. Forest fires

Câu 18: What happens when forests are destroyed?

A. More oxygen is produced

B. Wildlife loses its habitat

C. Air becomes cleaner

D. Soil becomes stronger

Câu 19: Recycling means:

A. Throwing trash away

B. Burning garbage

C. Turning waste into reusable material

D. Selling garbage

Câu 20: Which of the following is biodegradable?

A. Plastic bottle

B. Banana peel

C. Aluminum can

D. Glass cup

Câu 21: What is the purpose of Earth Hour?

A. To promote shopping

B. To increase electricity use

C. To raise awareness about energy conservation

D. To celebrate sports

Câu 22: What type of pollution is caused by oil spills in the sea?

A. Noise pollution

B. Land pollution

C. Air pollution

D. Water pollution

Câu 23: Which is an effect of deforestation?

A. Stable weather

B. Clean rivers

C. Soil erosion and loss of biodiversity

D. Increase in wildlife

Câu 24: What should you do before a storm?

A. Go swimming

B. Close windows and stay indoors

C. Ride a bike

D. Fly a kite

Câu 25: What is the best way to dispose of old batteries?

A. Throw them in the bin

B. Flush them

C. Take them to a recycling center

D. Bury them

Câu 26: Natural disasters include:

A. Holidays

B. Earthquakes and typhoons

C. School plays

D. Birthdays

Câu 27: Why are trees important for the environment?

A. They produce noise

B. They reduce oxygen

C. They absorb carbon dioxide and provide oxygen

D. They block sunlight

Câu 28: Global warming mainly results from:

A. Forest growth

B. Reduced car use

C. Human-made pollution

D. Clean factories

Câu 29: What is a cyclone?

A. A type of fish

B. A weather satellite

C. A violent rotating storm

D. A mountain

Câu 30: A good way to reduce paper waste is:

A. Print everything twice

B. Use both sides of the paper

C. Use paper plates

D. Burn all papers

Câu 31: What can cause flooding?

A. Planting trees

B. Too much rainfall and poor drainage

C. Cold air

D. Clean rivers

Câu 32: What can schools do to protect the environment?

A. Waste water

B. Use disposable cups

C. Encourage recycling and tree planting

D. Use more air conditioners

Câu 33: Which natural disaster cannot be predicted accurately?

A. Thunderstorm

B. Earthquake

C. Typhoon

D. Rainfall

Câu 34: What is the main cause of soil pollution?

A. Rainfall

B. Chemical waste from farms and factories

C. Tree roots

D. Bird droppings

Câu 35: A landslide happens when:

A. Water freezes

B. Trees grow

C. Earth and rocks slide down a slope

D. Grass turns brown

Câu 36: What is the 3R rule?

A. Read, Repeat, Remember

B. Reduce, Reuse, Recycle

C. Run, Rest, Race

D. Raise, Reach, React

Câu 37: What is composting?

A. Mixing plastic

B. Burning paper

C. Turning food waste into fertilizer

D. Freezing water

Câu 38: What is an environmental benefit of riding a bicycle?

A. Increases noise

B. Pollutes the air

C. Reduces traffic and emissions

D. Uses fuel

Câu 39: What should you do during a tsunami warning?

A. Go swimming

B. Stay at the beach

C. Move to higher ground immediately

D. Take selfies

Câu 40: Which of the following can help reduce climate change?

A. Using coal

B. Burning plastic

C. Using renewable energy

D. Cutting more trees

Câu 41: What is an endangered species?

A. An animal with lots of babies

B. A plant that grows quickly

C. A species at risk of extinction

D. A common farm animal

Câu 42: The ozone layer helps:

A. Trap pollution

B. Block harmful UV rays

C. Produce water

D. Reflect sound

Câu 43: What is the most effective way to save water at home?

A. Leave taps running

B. Use a hose for cleaning

C. Fix leaking faucets

D. Take long showers

Câu 44: What should people do with food waste?

A. Throw it into the street

B. Burn it

C. Compost it or feed animals

D. Leave it in classrooms

Câu 45: What is a heatwave?

A. A strong wind

B. A long period of very hot weather

C. An earthquake

D. A snowstorm

Câu 46: Natural resources include:

A. Plastic

B. Electricity from batteries

C. Water, wind, and sunlight

D. Robots

Câu 47: What does “eco-friendly” mean?

A. Dangerous to nature

B. Friendly to tourists

C. Safe and good for the environment

D. Expensive

Câu 48: Which activity helps keep the air clean?

A. Driving more

B. Smoking

C. Planting trees

D. Burning rubber

Câu 49: When a volcano erupts, it releases:

A. Cold air

B. Lava, ash, and gases

C. Snow

D. Water

Câu 50: A recycling symbol usually has:

A. Three arrows forming a triangle

B. A red cross

C. A dollar sign

D. A flower

Câu 51: Which type of pollution affects hearing and concentration?

A. Light pollution

B. Soil pollution

C. Noise pollution

D. Plastic pollution

Câu 52: Which country is often affected by typhoons?

A. Vietnam

B. Switzerland

C. Egypt

D. Canada

Câu 53: Why is it important to reduce plastic use?

A. Plastic is cheap

B. Plastic is heavy

C. Plastic pollutes land and oceans

D. Plastic is colorful

Câu 54: What can schools do to raise environmental awareness?

A. Increase homework

B. Organize clean-up campaigns

C. Build shopping malls

D. Ignore the topic

Câu 55: What does the term “zero waste” refer to?

A. Using more plastic

B. No garbage is ever produced

C. Minimizing waste and maximizing reuse

D. Wasting water

Câu 56: A flood can be caused by:

A. Too much rain and poor drainage

B. Too much sun

C. Loud noise

D. Clean rivers

Câu 57: What is smog?

A. Clean air

B. Smoke + fog = polluted air

C. Type of tree

D. Storm warning

Câu 58: One way to protect marine life is to:

A. Throw nets in the sea

B. Dump oil in the ocean

C. Reduce plastic waste

D. Feed fish with chemicals

Câu 59: Which of these is a benefit of planting trees?

A. Attracts mosquitoes

B. Produces oxygen and reduces CO₂

C. Blocks the sun completely

D. Causes droughts

Câu 60: What should you avoid during a lightning storm?

A. Staying inside

B. Using a mobile phone outdoors

C. Sitting on dry ground

D. Reading a book