alleryUp to what height is half of the atmosphere's mass found?
A1.2 km
B16 km
C30 km
D5.6 km
Answer & Solution
Correct answer: D. 5.6 km
1. Mass is concentrated near the ground because air is compressed there.
2. About 50 percent of the mass is below 5.6 km.
3. 90 percent lies below 16 km and 99 percent below 30 km.
_Source: Wikipedia, Atmosphere of Earth, Pressure and thickness_
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