Question

Yellowing of marble due to pollutants in the Earth’s atmosphere is termed as ___________.

Answer 1

1. The acids (Sulphur dioxide and Nitrogen oxide) present in the acid rain react with the marble of monument and corrode it slowly.
2. This phenomenon is called Marble cancer.
3. The main reason for marble cancer is acid rain.

Therefore, yellowing of marble due to pollutants in the Earth’s atmosphere is termed as Marble cancer.