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Question

Taj is damaged due to acid rain. This phenomenon is called___.


  1. Stone corrosion

  2. Stone cancer

  3. Acid cancer  

  4. Marble cancer


Solution

The correct option is D

Marble cancer


Oxides of nitrogen and sulphur form acids when reacted with water vapour present in the atmosphere. Nitrogen dioxide forms nitric acid and sulphur dioxide forms sulphuric acid. This results in acid rain. Acid rain corrodes the white marbles of Taj Mahal. This phenomenon is called Marble cancer.

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