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Ozone layer above the surface of Earth provides a shield against...

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Ozone layer above the surface of Earth provides a shield against

Answer & Solution
Correct Answer: Option B
Ozone is present in the atmosphere in small amounts, in a layer 10 to 60 kilometres above the earth (ozonosphere) and in close proximity to the ground. The ozone layer serves as protective shield against ultraviolet (UV) rays.
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