Question

In one half of the given picture, we can see a distinct discolouration of the Taj Mahal. Identify the main cause of the discolouration of this monument:

Options

• Chloro-Fluro Carbon gas

• Smog

• Acid rain

• Old age of this monument

Answer 1

Acid rain

Explanation:

Emissions of sulphur and nitrogen oxides from nearby industries and refineries form acid rain and deposit corrosive compounds and soot on the white marble, causing yellowing and surface damage.