Which of the following is true of CFCs?
A) They are now banned by international treaty.
B) They have disappeared in the atmosphere.
C) They are very toxic to humans.
D) They are not able to exist for long in the atmosphere.
E) They are now the most dominant gases in the stratosphere.

Question

Quizplus · Accepted Answer

CFCs (chlorofluorocarbons) were widely used in refrigerants, aerosol sprays, and foam blowing agents. However, due to their harmful effects on the ozone layer and the environment, the use of CFCs has been restricted or banned by international treaties such as the Montreal Protocol.

Which of the Following Is True of CFCs