What important role does the ozone layer play?
ACuts harmful UV rays
BProduces most rainfall
CCreates oxygen gas
DWarms the oceans
Answer & Solution
Correct answer: A. Cuts harmful UV rays
1. The ozone layer lies in the atmosphere.
2. It reduces the amount of ultraviolet radiation reaching the surface.
3. This protects life, since DNA is readily damaged by UV light.
_Source: Wikipedia, Natural environment, Atmosphere, climate and weather_
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