... natural pH of about 5, due to naturally occurring constituents of the atmosphere, such as carbon dioxide, but acid rain has a pH of about 4. Acid precipitation includes rain, snow, hail, and fog. The term acid deposition refers to both acid precipitation and tiny dust particles formed from the pollutants in acid rain. Acid rain has destroyed plant and animal life in lakes, damaged forests and crops, and caused extensive erosion of ... and Scandinavia, the rivers and lakes have become notably more acidic, damaging the ecosystems and causing a loss of freshwater fish and other life forms. S...

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• Grade Level: Undergraduate