Taj mahal is badly affected by acid rain. This is because-
Options:
A .  
Taj mahal is made of marble
B .  
Acid rain attacks the steel structure of Taj mahal
C .  
Acid rain has a pH above 5.6
D .  
The paint on Taj mahal is soluble in acids.
Answer: Option A : A Tajmahal is made of marble (CaCO3) which reacts with sulphuric acid of the acid rain causing pitting, decolourization and lusterless.
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