What chemical is responsible for depleting the Earth's ozone at a rapid rate?

a. DDT
b. PCBs
c. CFCs
d. Carbon dioxide


ANS: C
Chlorofluorocarbons, CFCs, were used in various coolants and pressurized canisters. These chemicals
were being converted by light energy into compounds that were attacking and depleting the ozone.
Information can be found in the section Human Activity is Causing Global Oceanic Change.

Environmental & Atmospheric Sciences

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