CTET PAPER I 2018 · PYQ · Pollution / Heritage · easy
Which one of the following is responsible for turning Taj Mahal yellow?
A.Nitrogen dioxide
B.Sulphur dioxide✓ Correct
C.Sulphur
D.Chlorine
Explanation
Sulphur dioxide (SO₂) emitted from nearby industries and vehicles reacts with atmospheric moisture to form sulphuric acid, which causes acid rain. This acid rain corrodes the white marble of the Taj Mahal, causing it to turn yellowish — a phenomenon known as 'marble cancer'.
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