Earthed

How the atomospheric air around the earth does not escape into space ?

Earth is covered by a layer of atomspheric air. It is the life line of all living beings on the earth. What force binds the atomospheric air with the earth ?

Public Comments

1. Gravity of the situation :-)
2. Ozone
3. The gravity of any planet could hold an atmosphere if conditions are right. The bigger the planet, such as jupiter, the lighter gases it could keep down. ;D
4. The same question Newton asked why everything stays down and falls to the earth
   
   
   
   Its GRAVITY
5. Because of gravity.
6. The atmosphere is a layer of mixed gases collectively called air, around Earth, held there by its gravity.
7. "gravitational" force
8. due to earth's gravititional force!!
9. in spite of the gravitational force the another reason for your question is that the air inside the atmosphere dos'nt cross the limit of it's escape velocity .
10. Due to the gravitational force excerted by the earth.