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The Air Around You - Chapter 4 Air Pollution

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Across
4.Pollutants that are not released directly into the air but form in the atmosphere. (2 Words)
10.A form of eye damage that results from high amounts of ultraviolet radiation.
11.The level at which pollutants (like carbon monoxide, sulfur dioxide, and nitrogen dioxide) can not exceed is established with this. (3 Words)
12.Pollutants released into the air from a particular source (car exhaust, smokestacks, etc).
13.Substances released into the air that cause or might cause cancer or other serious human health problems. (3 Words)
14.Precipitation with a pH of less than 5.6 (2 Words)
Down
1.A form of smog that is found near cities and only is activated by sunlight. (2 Words)
2.Harmful rays from the sun that are blocked partially by the ozone layer. (2 Words)
3.The suspended solid particles and liquid droplets in the air. (2 Words)
5.A layer of three-oxygen molecules that absorbs some of the Sun's ultraviolet radiation. (2 Words)
6.Pollutants released directly into the air in a harmful form. (2 Words)
7.Organs that take in oxygen and eliminate carbon dioxide. (2 Words)
8.The process in which pollutant levels increase through the food chain.
9.A scale used to measure how acidic or basic something is. (2 Words)
10.A sedimentary rock formed from decayed plant material; the world's most abundant fossil fuel.
11.The surrounding air that you breathe. (2 Words)

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