First slide

Ozone Depletion in the Stratosphere

Question

In stratosphere, UV rays act on CFCs (Chlorofluoro Carbons) and release _______ leading to ozone depletion.

Easy

A

Hydrogen atoms
B

Chlorine atoms
C

Fluorine atoms
D

Carbon atoms

Solution

CFCs discharged in the lower part of the atmosphere move upward and reach the stratosphere. In the stratosphere, UV rays act on them releasing Cl atoms. Cl degrades ozone releasing molecular oxygen.

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