1.
What do we call the cutting down of trees?
2.
What type of pollution happens when chemicals enter rivers or oceans?
3.
What gas is released when fossil fuels are burned?
4.
What activity involves catching too many fish?
5.
What do we call harmful substances released into the air?
6.
What material is commonly thrown away and harms oceans?
7.
What process removes minerals from the Earth?
8.
Building cities and roads is known as what?
9.
What do farms use that can pollute soil and water?
10.
What type of pollution comes from excessive nighttime lighting?
