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Q.
The Taj Mahal is threatened due to the effect of
Environmental Issues
Solution:
The Taj Mahal is built with white marble and is threatened by environmental pollution, especially due to sulphur dioxide. Sulphur dioxide is produced during combustion of fossil fuels, refining of petroleum and smelting of sulphur containing ores. Threat to Taj Mahal from Mathura refinary is due to pollutant gases consisting of $SO _{2}, H _{2} S$ and nitrogen oxides. They would convert $CaCO _{3}$ (marble) into calcium sulphate and calcium nitrate.