Ozone in the stratosphere is depleted by
Subject : Environmental Sciences
Question:
Ozone in the stratosphere is depleted by ________.
A) Carbon Dioxide
B) Methane
C) Chlorofluorocarbons (CFCs)
D) Nitrogen
Expert Verified Solution: C) Chlorofluorocarbons (CFCs)
Description:
Ozone in the stratosphere is depleted by chlorofluorocarbons (CFCs). CFCs and other ozone-depleting substances release chlorine and bromine atoms in the stratosphere when they break down under ultraviolet (UV) radiation. These chlorine and bromine atoms then react with ozone (O₃) molecules, causing the ozone to break apart. This process leads to a reduction in the concentration of ozone in the stratosphere, contributing to the thinning of the ozone layer and the formation of the ozone hole.
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