The statue of liberty is made of copper. It was originally brown but has since turned green. This is probably due to _______.

Carbon dioxide (CO2) combines with water as raindrops fall through the atmosphere. This makes a weak acid, called carbonic acid. Carbonic acid is a very common in nature, where it works to dissolve rock.

Pollutants, such as sulfur and nitrogen from fossil fuel burning, create sulfuric and nitric acid. Sulfuric and nitric acids are the two main components of acid rain, which speeds up chemical weathering.

This statue was probably destroyed by _____.

Oxidation is when

A piece of chalk contains calcium carbonate, like limestone rock does. The chalk is placed in water that contains seltzer tablets to create bubbly, carbonated water. These products reacting start to dissolve the chalk. What is modeled here?

These gravestones have slowly broken down and turned a blackish color due to the action of:

When fossil fuels are burned, these chemicals combine with water in the atmosphere to produce..

Lichens and plantlike organisms that grow on rocks produce a weak acid to chemically weather rock. What type of chemical weathering agent is this an example of?

This agent of chemical weathering easily weathers marble and limestone.