alleryStart learning →About 99 per cent of the atmosphere's total mass lies within:
A8 km of the surface
B13 km of the surface
C50 km of the surface
D32 km of the surface
Answer & Solution
Correct answer: D. 32 km of the surface
1. Air thins rapidly as height increases.
2. 99 per cent of the total mass is confined near the earth.
3. That mass sits within 32 km of the surface.
_Source: syllabus Geography, 'Composition and Structure of Atmosphere' (kegy207)_
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