alleryNoctilucent clouds, the highest clouds, form in which layer?
ATroposphere
BExosphere
CStratosphere
DMesosphere
Answer & Solution
Correct answer: D. Mesosphere
1. Just below the mesopause the air is cold enough to freeze scarce water vapour.
2. This gives noctilucent clouds of ice particles in the mesosphere.
3. Ordinary weather clouds stay in the troposphere.
_Source: Wikipedia, Atmosphere of Earth, Mesosphere_
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