Question

Lakes can be too acidic from dissolved air pollutents like sulphur dioxide and cause a decline in fish populations. Alkaline lime can be added to the lake to help the situation. What type of reaction occurs between the lime and acid rain to affect the lake pH

Answer 1

It is in aquatic habitats that the effects of acid rain are most obvious. Acid rain runs off the land and ends up in streams, lakes and marshes - the rain also falls directly on these areas. As the acidity of a lake increases, the water becomes clearer and the numbers of fish and other water animals decline.

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