Assertion (A): Earth has atmosphere and moon doesn’t.
Reason (R): Escape speed on moon is less than that of earth.
(1) (A) and (R) are correct and (R) is the correct explanation of (A)
(2) (A) and (R) are correct but (R) is not the correct explanation of (A)
(3) (A) is true, but (R) is false
(4) (A) and (R), both are false