the escape velocity, which is greater than the mean speed of atmospheric molecules.
the suns gravitational effect.
the escape velocity, which is less than the main speed of atmospheric molecules.
A
the escape velocity, which is less than the main speed of atmospheric molecules.
B
the suns gravitational effect.
C
the special shape of the earth.
D
the escape velocity, which is greater than the mean speed of atmospheric molecules.
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Solution
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The earth retains its atmosphere. This is due to the escape velocity being greater than the mean speed of the molecules of the atmospheric gases.
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