Air Pollution

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What is air pollution?

Back

The contamination of the atmosphere by the introduction of pollutants from human and natural sources.

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What is smog?

Back

A type of air pollution that makes it difficult to breathe, often found in urban areas.

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What is acid rain?

Back

Rain that has been made acidic by pollutants, which can harm living things by changing the pH of water.

Front

What gas is released by burning fossil fuels?

Back

Carbon dioxide.

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How does smog affect health?

Back

It can cause respiratory problems and make it difficult to breathe.

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What are the main sources of air pollution?

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Burning fossil fuels, industrial emissions, vehicle exhaust, and natural sources like wildfires.

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What is the difference between smog and acid rain?

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Smog makes it difficult to breathe; acid rain wipes out natural habitats.

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Why is air pollution more serious in cities?

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Cities have many homes, factories, and offices that contribute to higher levels of pollution.

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What is the ozone layer?

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A layer in the Earth's stratosphere that absorbs most of the Sun's harmful ultraviolet radiation.

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What is a pollutant?

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A substance that contaminates the environment and can cause harm to living organisms.