Which layer of air holds nearly all atmospheric water vapour?
ATroposphere
BStratosphere
CMesosphere
DThermosphere
Answer & Solution
Correct answer: A. Troposphere
1. Clouds and moisture need warm lower air.
2. Nearly all water vapour is found in the troposphere.
3. The stratosphere and layers above are almost dry.
_Source: Wikipedia, Atmosphere of Earth, Troposphere_
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