Multiple choice general knowledge

The Taj Mahal is affected due to

  1. Green house gases

  2. Ozone

  3. Excess humidity in air

  4. Acid rain

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sulfur dioxide and nitrogen oxides react with moisture in the atmosphere to form acid rain, which corrodes the marble structure of the Taj Mahal. This phenomenon is often referred to as marble cancer.