20. By acid rain, the pH of water body
(a) is reduced
(b) is increased
(c) remains the same (d) none
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2
Answer:
Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0.
Answered by
2
Answer:
reduced
Explanation:
by acid rain, the pH of water body is reduced
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