Q1. Paheli observed that most of the fish in the pond of her village were gradually dying. She also observed that the wastes of a factory in their village are flowing into the pond which probably caused the fish to die. (a) Explain why the fish were dying? (b) If the factory waste is acidic in nature, how can it be neutralized? (1+1)
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Fishes were dying because of the disposal of waste materials by the factory in that river. The waste materials of that factory pollut river water.
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The wastes of factory may contain high ratio of basic or acidic chemicals. These chemicals make aquatic life difficult.
Base will neutralize the acids. So, by adding the base (limestone, lime etc) into water we can make it less harmful and neutral too.
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