The most predominant greenhouse gas emitted through human activity is
A) hydrocarbons.
B) methane.
C) carbon dioxide.
D) nitrous oxide.
Question 2
Which chemicals previously used in products such as refrigerants, aerosol sprays, and cleaning products contributed to the depletion of the ozone layer?
A) Hydrocarbons
B) Chlorofluorocarbons
C) Particulates
D) Nitrous oxide