Which boundary separates the stratosphere from the mesosphere above it?
AThermopause
BTropopause
CStratopause
DExobase
Answer & Solution
Correct answer: C. Stratopause
1. The mesosphere sits directly above the stratosphere.
2. The mesosphere starts at the stratopause, at about 50 km.
3. The tropopause is lower, and the thermopause and exobase are higher.
_Source: Wikipedia, Atmosphere of Earth, Mesosphere_
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