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Chapter 12.3
Chapter 12.3 Acid Precipitation
| Term | Definition |
|---|---|
| Acid precipitation | Precipitation, such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere |
| Acid Shock | The sudden runoff of large amounts of highly acidic water into lakes and streams when snow melts in the spring, or when heavy rains follow a drought |
| pH | A value that is used to express the acidity or alkalinity (basicity) of a system; each whole number on the scale indicates a tenfold change in acidity; a pH of 7 is neutral, a pH of less than 7 is acidic, and a pH of greater than 7 is basic |