Question

Assertion: The threat to Taj Mahal is because of gases which creates discolouration and deterioration of sculptures, painted surfaces.
Reason: Mathura refinery releases lots of sulphur dioxide gases.

• A. Assertion is true but reason is false.
• B. Both assertion and reason are false.
• C. Both assertion and reason are true and the reason is the correct explanation of the assertion.
• D. Both assertion and reason are true and the reason is not the correct explanation of the assertion.

Answer 1

The correct option is C Both assertion and reason are true and the reason is the correct explanation of the assertion.

Mathura refinery releases lots of sulphur dioxide gases, which combine with the moisture of atmosphere forming sulphuric acid, causing acid rain. Acid rain causes Stone leprosy or rock cancer which is seen as erosion, discolouration and deterioration of monuments, sculptures made up of limestone and marble. Taj Mahal being one of them. The painted surfaces also deteriorate.