Ozone is formed in the upper atmosphere by the action of ultraviolet radiation on.... * Nitrogen Carbon dioxide oxygen
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oxygen
Explanation:
The ozone smog
It is constantly formed in the earth's atmosphere by action of ultraviolet light emitted by the sun on oxygen molecules. Ozone thus constitutes in the stratosphere a shield that prevents the ultraviolet radiation, which causes biological damage (skin cancer) from passing to the earth's surface.
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Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation (sunlight) and oxygen molecules, which make up 21% of the atmosphere. In the first step, solar ultraviolet radiation breaks apart one oxygen molecule (O2) to produce two oxygen atoms (2 O)
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