7th: Ch. 16 Lesson 4- Air Quality
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7 terms
Terms | Definitions |
|---|---|
 air pollution | the contamination of air with harmful substances. |
| acid precipitation | precipitation with a PH lower than normal water. |
| photochemical smog | air pollution that forms from the interaction between chemicals in the air and sunlight. |
| particulate matter | a mixture of dust, acids, and other chemicals that can be hazardous to human health |
| Clean Air Act | a Law in 1970 to help keep healthful quality air. |
| point-source | pollution that comes from an identifiable source. |
| Nonpoint-Source | pollution that comes from a wide spread area. |
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