Question

which of the following is not an example of a naturally occurring greenhouse gas?
chlorofluorocarbon
nitrous oxide
water vapor
methane

Explanation:

Nitrous oxide, water vapor, and methane are naturally - occurring greenhouse gases. Chlorofluorocarbons (CFCs) are synthetic compounds that were widely used in refrigeration, air - conditioning, and as solvents. They are not naturally occurring greenhouse gases.

Answer:

chlorofluorocarbon