The zone which extends above troposphere up to 50 km above sea level and contains dinitrogen, dioxygen, ozone and little water vapour is called:
exosphere
mesosphere
ionosphere
stratosphere
A
stratosphere
B
mesosphere
C
exosphere
D
ionosphere
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Solution
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Stratosphere ranges from 20-50 km. It is the layer above troposphere. Stratosphere contains ozone as it's main species.
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