Question

Acid rain is very harmful to crops, buildings and soil. It is the main reason for discolouration of Taj Mahal over years. Which among the following statements is the main cause of acid rain?

• A. Incomplete combustion of fuels releases carbon monoxide which dissolves in rain water to give acid rain.
• B. Carbon particles which are released in the atmosphere dissolve in rain water to given acid rain.
• C. Oxides of sulphur and carbon released during combustion of fuels dissolve in rain water to give acid rain.
• D. Wood when burnt in open releases methane and other gases which cause acid rain.

Answer 1

The correct option is C Oxides of sulphur and carbon released during combustion of fuels dissolve in rain water to give acid rain.

Acid rain is caused by a chemical reaction that begins when compounds like sulphur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water to form more acidic pollutants.