Q25Multiple choice
Paheli observed that most of the fish in the pond of her village were gradually dying. She also observed that the waste of a factory in their village is 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 neutralised?
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Hint: (a) Since factory waste may contain acids or bases, it can kill the fish. (b) If the factory waste is acidic in nature, it can be neutralised by adding basic substances.