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  1. The zone of atmosphere in which the ozone layer is present is called:
    1. Ionosphere
    2. Mesosphere
    3. Stratosphere
    4. Troposphere
Correct Option: C

The ozone (O2) found in upper part of the atmosphere, i.e., Stratosphere, is Good ozone, since, it acts as a shield for absorbing UV-radiations from sun.



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