Unit 4 CSA Review

Front

What are primary air pollutants?

Back

Primary air pollutants are harmful substances that are directly emitted into the atmosphere from sources such as vehicles and industrial facilities, often as a result of the combustion of fossil fuels.

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What is deforestation?

Back

Deforestation is the large-scale clearing of forests, often resulting in damage to the quality of the land and loss of biodiversity.

Front

What is a point source of pollution?

Back

A point source of pollution is a single, identifiable source of pollution, such as a pipe discharging waste into a river.

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What is a non-point source of pollution?

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A non-point source of pollution is diffuse and does not have a single point of origin, such as runoff from agricultural fields.

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What does it mean to use land for harvesting wood?

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Using land for harvesting wood involves managing forests to obtain timber and other forest products sustainably.

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What does it mean to use land for growing crops?

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Using land for growing crops involves cultivating soil to produce food, fiber, and other agricultural products.

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What is temperature inversion?

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Temperature inversion is a meteorological phenomenon where a layer of warm air traps cooler air and pollutants near the Earth's surface, often leading to smog.

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What is smog?

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Smog is a type of air pollution that is a mixture of smoke and fog, often exacerbated by temperature inversions.

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What is acid precipitation?

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Acid precipitation refers to rain, snow, or fog that has a lower pH than normal, often caused by sulfur dioxide and nitrogen oxides in the atmosphere.

Front

What are secondary air pollutants?

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Secondary air pollutants are not emitted directly; they form in the atmosphere through chemical reactions between primary pollutants and other substances.