Which gas causes the Taj Mahal’s yellowing?
Which gas causes the Taj Mahal’s yellowing?
A: Chlorine
B: Carbon dioxide
C: Sulphur dioxide
D: Ammonia
Sulphur dioxide from industrial emissions reacts with the Taj Mahal’s marble; causing yellowing. Other gases have less impact. This highlights air pollution’s effect on heritage sites; significant for studying environmental conservation and cultural preservation efforts.