Pick out the wrong statement ?

Chemical Environmental Engineering 14/09/2020

A. The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere
and characterised by a steady decrease in temperature is called stratosphere
B. Stratosphere is rich in ozone and is located just above the troposphere
C. Troposphere is a turbulent dusty zone containing much of water vapor and clouds
D. The earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms

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