Question

How would increased chlorofluorocarbons (CFCs) in the atmosphere affect the growth of vegetation throughout the world?

A. Ultraviolet light will decrease on Earth’s surface. It will lower temperatures and increase plant populations.
B. Ultraviolet light will increase on Earth’s surface. It will raise temperatures and decrease plant populations.
C. Ultraviolet light will increase on Earth’s surface. It will raise temperatures and increase plant populations.
D. Ultraviolet light will decrease on Earth’s surface. It will lower temperatures and decrease plant populations.

Answer 1

Chlorofluorocarbons are a class of organic compounds that were used as propellants in the late 20th century. The problem with CFC's is that they attack the ozone layer, breaking it down. The weakened ozone layer is not able to stop UV light from reaching the earth, so the amount of UV light reaching the earth increases. This results in increased temperatures, and the death of vegetation.

Therefore, the answer is B.

Answer 2

the answer isn't B for anybody wondering. i took the test soooo