Question

why atmosphere is held up

Answer 1

It absorbs harmful ultraviolet radiation from the sun, helps keep Earth's surface warm via the greenhouse effect, and reduces temperature extremes between day and night. Yay atmosphere! It keeps Earth livable. So, thanks to gravity, although some of Earth's atmosphere is escaping to space, most is staying here.

Answer 2

Hii here is ur answer


To maintain the natural and humans activities for well being of life .

hope it helps you...