There is no atmosphere at moon, because :
A. Moon is closer to earth
B. It revolves round the earth
C. It gets light from sun
D. Escape velocity of gas molecules is less than their root mean-square velocity.
Answer:D
There is no atmosphere at moon, because :
A. Moon is closer to earth B. It revolves round the earth C. It gets light from sun D. Escape velocity of gas molecules is less than their root mean-square velocity.