B. The composition of the atmosphere would change.
If the rate at which materials naturally move in or out of the atmosphere changed, it would disrupt the balance of gases and other materials in the atmosphere, leading to a shift in its composition.
The atmosphere recycles many materials naturally.
Different gases are continuously moving in and out of the atmosphere at all times. Since the rate at which most materials enter the atmosphere roughly equals the rate at which they also leave it, this means that the composition of the atmosphere is nearly constant, or unchanging, through time.
What would happen if the rate at which materials naturally move in or out of the atmosphere changed?
A.
The atmosphere would be sucked into the core of the Earth by gravity.
B.
The composition of the atmosphere would change.
C.
The composition of the atmosphere would be completely unaffected.
D.
The atmosphere would give off more light.
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