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Question

Choose the force responsible for holding the atmosphere near the surface of the earth.

A
electrostatic force
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B
magnetic force
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C
factional force
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D
gravitational force
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Solution

The correct option is D gravitational force
due to high force of attraction of earth, escape velocity from earth is higher for almost all the gases, this is the reason that all the gases are held around the earth, light gases like hydrogen can not stay in the atmosphere because its escape velocity is less.
thus we can say that atmosphere is held by gravity.
so option D is correct.

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