Q87)acid rain can be caused by the burning of:

a)petrol b)CNG c)diesel d)coal

Why so?

Acid rain can be caused by burning of ,option a) Petrol. The reason is that when petrol is burnt the nitrogen oxide are given out which uniforms with water of rainy clouds and therefore acid rain takes place.

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(d) coal

Sulphur is found as a trace element in coal. When coal is burnt, sulphur combines with oxygen to form sulphur dioxide (SO2). SO2 does not react with most chemicals found in the atmosphere and can travel long distances. Further, it reacts with water vapours in the atmosphere and causes acid rains.
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