A) Acids that enter the atmosphere primarily affect ecosystems located less than 100 kilometers from the source of the pollution.
B) The effects of acidification of lakes appear to be quickly reversible if their pH can be returned to normal.
C) While regulation of emission sources has raised, the pH of precipitation in parts of the eastern United States, precipitation in many parts of the West is becoming more acidic.
D) Sulfuric acid and nitric acid from smokestack and automobile emissions are the major causes of acid precipitation.
Correct Answer: A
Solution :
[a] Acid precipitation is a regional, not a local, environmental problem. Acids may travel hundreds of kilometers before they settle to Earth in precipitation or as dry particles.
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