Question

how does the earth hold the atmosphere ​

Answer 1

Answer:

the earth actually not hold the atmosphere it's the bend and direction of wind that just hold the atmosphere and also the gravitational force which is directed towards the centre of earth

Answer 2

Answer:

HERE IS YOUR ANSWER MATE :)

Gravity. Fortunately for us, Earth's gravity is strong enough to hold onto its atmosphere. Mars, for example, is less than half Earth's size and around one-tenth Earth's mass. ... The higher you go in the atmosphere, the thinner the air becomes.

I hope it was helpful...