. There is no atmosphere on the moon because


A: It is closer to the earth

B: It revolves round the earth

C: It gets light from the sun

D: The escape velocity of gas molecules is lesser than their root mean square velocity

 

Best Answer

Explanation:

There is no atmosphere on the moon because the escape velocity of gas molecules is lesser than their root mean square velocity.

Thus, all the molecules on the moon escape due to which no atmosphere is present on moon.

Final Answer:

Hence, option D is correct.  (  The escape velocity of gas molecules is lesser than their root mean square velocity )

 

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