What is acid rain?
A) Rainfall that turns green.
B) Rainfall that turns bodies of water into mush.
C) Rainfall that has been polluted by smoke and harmful gasses.
How does acid rain change an ecosystem?
A) It makes the water turn green.
B) It pollutes bodies of water, corrodes buildings, and makes animals sick.
True or false, people can treat acid rain by adding helpful chemicals to the water in order to clean it.