How does acid rain affect a statue carved from marble?

Question

How does acid rain affect a statue carved from marble?

Answer 1

it melts the marble....

Answer 2

it re shapes it

Answer 3

Marble is created when limestone or dolostone metamorphose due to great heat and pressure.  Limestone and dolostone contain calcium carbonate which is a basic composition, meaning that acid will break it down.  When an acid reacts with a base it causes a chain reaction that creates a salt carbon dioxide, and water.  For example when calcium carbonate (CaCO3) reacts with hydrochloric acid (HCl) it forms water (H20), calcium chloride (CaCl, a salt), and carbon dioxide (CO2).