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The Taj Mahal has become a matter of concern:
A.Because it is located in Agra city
B.Because of its bustling manufacturing centre in the populous city
C.Because pollutants in air are discoloring its white marble.
D.None of these

Last updated date: 22nd Feb 2024
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IVSAT 2024
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The Taj Mahal, an ivory white colored marble has changed color through the past years and has reached a point where India’s Supreme Court has gotten involved in the matter.

Complete step by step answer:
-Commissioned by the Mughal emperor, Shah Jahan, in memory of his favourite wife, Mumtaz Mahal, the Taj once had a pearly white exterior. But now it has changed in parts if not in whole, to various shades of yellow, brownish-black and green.
-The Taj Mahal has become a matter of concern because pollutants in the air are discoloring its white marble.
-It is the most beautiful place in India and it will be a tragedy if something bad happens to it.
-The colour of Taj Mahal has changed from white to yellow because of the oxide of sulphur and nitrogen dissolve in rain water and form acid (known as acid rain), and when this acid rain falls on it, then the colour changes from white to yellow.
-It is the acid rain that is most dangerous for the monument. Indeed, the inadvertent emission of sulphur dioxide, due to road traffic, causes acid rain.
-This rain colors the Taj Mahal yellow, and thus tarnishes it, and worse, it erodes it.

Hence, option C is correct.

A great way to reduce acid rain is to produce energy without using fossil fuels. Instead, people can use renewable energy sources, such as solar and wind power. Renewable energy sources help to reduce acid rain because they produce much less pollution.
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