Questions for Practice
1. Fossil fuels can cause air pollution. What is the primary consequence of air pollution caused by fossil fuel use?
a) Increase oxygen levels
b) Reduce lung problems
c) Asthma and lung diseases
d) Growth of more trees
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Answer: c) Asthma and lung diseases
Explanation: Air pollution from fossil fuel burning can lead to respiratory problems such as asthma and other lung diseases
2. Fossil fuels should be used less. How can we reduce our use of fossil fuels?
a) Plant more trees
b) Stop using energy entirely
c) Drive more cars
d) Switch to renewable sources of energy
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Answer: d) Switch to renewable sources of energy
Explanation: Using more renewable energy sources like solar power can help reduce fossil fuel use.
3. Global warming caused by the burning of fossil fuels can cause a lot of problems. Which among the following is not a consequence of global warming?
a) Extreme weather conditions
b) Deforestation
c) Rising sea level
d) Rising temperature
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Answer: b) Deforestation
Explanation: Deforestation is a separate activity that is not a consequence of global warming.
4. Josh's school wants to find a new way to power the computers in the classroom. They want something that won't harm the environment. What should they use?
a) Coal
b) Oil
c) Solar energy
d) Natural gas
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Answer: c) Solar energy
Explanation: Solar energy comes from the sun and doesn't produce pollution when used to power things like computers.
5. Tom travels with his dad by car, and they notice significantly more air pollution on busy city roads compared to their village. What are the MOST LIKELY reasons for this difference in pollution levels?
a) Factories are more common in cities, releasing industrial pollutants.
b) Villages have stricter laws on littering, leading to cleaner air.
c) Stronger winds in the city blow pollutants away more quickly.
d) City buildings block sunlight causing air pollution.
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Answer: a) Factories are more common in cities, releasing industrial pollutants.
Explanation: Factories and industries use various chemicals and release pollutants in the air. They are more common in cities, leading to higher pollution as compared to rural areas.
6. The Earth's crust holds many resources. Which of the following, found underground, is a fossil fuel used for energy?
a) Iron ore
b) Petroleum
c) Earth's crust
d) Soil
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Answer: b) Petroleum
Explanation: Petroleum or crude oil is a fossil fuel found inside the surface of the Earth.
7. Alex's family wants to heat their home during the winter without using fossil fuels. Which option should they consider?
a) Installing a natural gas furnace
b) Using a wood-burning stove
c) Turning on an electric heater
d) Burning coal
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Answer: c) Turning on an electric heater
Explanation: Electric heaters can be powered by renewable energy sources like solar power, making them good for the environment.
8. Maria's family is planning a camping trip in the mountains. They need to cook food during the trip. What should they use to cook that won't harm the air?
a) Charcoal
b) Wood
c) Gas
d) Solar cooker
View answer
Answer: d) Wood
Explanation: Solar cooker uses energy from the sun without burning fossil fuels or emitting pollutants.
9. Air pollution affects plants and animals in different ways. What can happen to plants due to air pollution?
a) They grow faster
b) They turn brown and wither
c) They become taller
d) They produce more fruits
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Answer: b) They turn brown and wither
Explanation: Air pollution can harm plants by covering their leaves with harmful chemicals affecting their growth.
10. Tommy is learning about fossils in his science class. He asks his teacher, "What are fossil fuels?"
a) Rocks found underground
b) Plants and animals that lived millions of years ago
c) Wood from trees
d) A Kind of plastic
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Answer: b) Plants and animals that lived millions of years ago
Explanation: Fossil fuels are made from the remains of plants and animals that lived many years ago.
11. During a family picnic at the park, Mia sees a sign that says, "Don't drink the water from the lake." She asks her dad, "Why can't we drink the water?"
a) Because the water is cold
b) Because the water is not fresh
c) Because only fish should drink it
d) Because it's polluted from fossil fuel runoff
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Answer: d) Because it's polluted from fossil fuel runoff
Explanation: Water pollution can occur when runoff from roads carries pollutants like oil and other fossil residue.
12. During a family picnic at the park, Mia sees a polluted river. Her dad told her that this pollution is caused by fossil fuels. How do fossil fuels contribute to water pollution?
a) They make the water cold
b) They make water unfresh
c) They make water safer for fishes
d) Water is polluted by fossil fuel runoff
View answer
Answer: d) Water is polluted by fossil fuel runoff
Explanation: Water pollution can occur when runoff from roads carries pollutants like oil and other fossil residue.
