Final answer:
Ozone formation in the atmosphere and its essential role in protecting life on Earth
Explanation:
Ozone is formed in the upper atmosphere by the action of ultraviolet light from the sun on oxygen. It acts as a barrier to harmful UV light by absorbing it through a chemical decomposition reaction.
Within the stratosphere, ozone is essential for protecting life on Earth. It is continually being replenished and destroyed in a cycle that helps absorb UV radiation, maintaining a balance in the atmosphere.
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