APFIVE Primary Cause of Ozone Depletion
Scientists observe unusually high rates of skin cancer in a coastal city, which they attribute to increased UVB exposure resulting from ozone depletion. What is a primary cause of this ozone depletion?
A
Increased carbon dioxide emissions
B
Decrease in stratospheric water vapor
C
Natural variations in solar radiation
D
Chlorofluorocarbons reaching the stratosphere
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