(a) Describe the threat to the Taj Mahal monument due to air pollution.
(b) State any two ways of controlling air pollution.

(a) Due to an increase in gases like sulphur dioxide and nitrogen dioxide in the atmosphere, acid rain takes place. Acid rain corrodes the marbles of monuments. The phenomenon is also called “Marble cancer”.

Suspended particulate matter, such as soot particles emitted by the Mathura oil refinery, has contributed to the yellowing of the marble. These are the threat to the beauty of the Taj Mahal.

(b) Several steps have been taken by Supreme court to protect Taj Mahal.