Chlorofluorocarbons are released into the atmosphere by:
A) smoke stacks.
B) car exhaust.
C) leaking air conditioners and old refrigerators.
D) pesticides.
E) nuclear power plants.

Question

Quizplus · Accepted Answer

Chlorofluorocarbons (CFCs) are often released into the atmosphere through the use of old refrigeration and cooling systems or leaking air conditioning units. These compounds were commonly used as refrigerants and propellants, and although they have been largely phased out due to their harmful effects on the ozone layer, some older systems are still in use, allowing CFCs to escape into the environment.

Chlorofluorocarbons Are Released into the Atmosphere By