alleryWhy are marble and limestone monuments damaged by acid rain?
AThe acids dissolve calcium carbonate
BThe rain freezes in cracks
CThe acids make them magnetic
DThe rain adds iron stains only
Answer & Solution
Correct answer: A. The acids dissolve calcium carbonate
1. Marble and limestone are made of calcium carbonate.
2. Acid rain reacts with and dissolves calcium carbonate.
3. Hence sculptures and buildings of these stones are most vulnerable.
_Source: Wikipedia, Fossil fuel, Environmental effects_
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