Question

Why does flow of acid rain water into a river make the survival of
aquatic life in the river difficult ?
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Answer 1

Answer:

Acid rain water, if mixed with river water, lowers its pH below 5.6, i.e., makes river water acidic. But the living body works normally within a pH range of 7-7.8. That's why flow of acid rain water to river makes the survival of aquatic life in the river difficult.