Where is over 95% of incoming ultraviolent radiation absorbed
a. the stratosphere
b. the mesosphere
c. the troposphere
d. the thermosphere

Over 95% of incoming ultraviolet radiation is absorbed in :

A. The Stratosphere.

Explanation:

Stratosphere is the second layer of the earth's atmosphere that lies next to the troposphere.This layer experiences very little turbulence of air and is very significant because of the presence of Ozone layer in it.The UV rays entering the Earth's atmosphere, photo dissociates ozone into O₂ and O. But these molecules quickly recombine to form ozone.Thus, stabilizing the concentration of ozone in the atmosphere.During this photo dissociation UV radiations loses much of its energy. Thus, 95% of incoming Ultraviolet radiation gets absorbed in the Stratosphere.Absorption of ozone UV radiation increases exponentially with the thickness of ozone layer.

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