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5 Cards in this Set
- Front
- Back
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emissions
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pollutants that are released into the air
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photochemical smog
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a brownish haze that is a mixture of ozone and other chemicals, formed when pollutants react with each other in the presence of sunlight.
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ozone
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form of oxygen that has three oxygen atoms in each molecule instead of two
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temperature inversion
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when a layer of warm air prevents the rising air from escaping. polluted air becomes trapped and is held close to Earth's surface
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acid rain
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caused by the emissions from power plants and factories that burn coal and oil. Can be in the form of snow, sleet, fog or rain
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