Question

if many stone buildings are made from limestone, which is primarily calcium carbonate.What happens to such building over time if they are exposed to acid rain?

Answer 1

Answer:

When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details. Stone surface material may be lost all over or only in spots that are more reactive.