Why would a decrease in the density of the ozone layer create a public health concern?
a. The greenhouse effect would not be as efficient and the temperature of Earth would decrease.
b. The greenhouse effect would be more efficient and the temperature of Earth would increase.
c. Plant life would no longer have the ozone it needs for photosynthesis to create chlorophyll.
d. Ultraviolet radiation from the sun would bombard Earth.
e. none of the above
D
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