2007-10-31 02:09:21 · 6 answers · asked by iveaquestion 3 in Science & Mathematics ➔ Astronomy & Space
The atmosphere is kept in place by gravity, and is also protected by Earth's magnetic field. In comparison, Mars has much weaker gravity and magnetic field and subsequently has a much thinner atmosphere.
2007-10-31 04:10:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Hey...
Good question. I don't know the answer.
Dark matter? Why gravity? Shouldn't gravity be pulling the sky down instead of holding it up?
Forgive my ignorance. I am 15.
2007-10-31 03:49:09 · answer #2 · answered by sk8ter 3 · 1⤊ 2⤋
Nothing.
It just is.
The atmosphere, however, is held by Gravity.
Air molecules (nitrogen, oxygen, etc) stop it coming all the way down - its a balance between gravitational forces pulling down and air pressure pushing all other ways.
2007-10-31 02:24:13 · answer #3 · answered by Anonymous · 2⤊ 0⤋
It's gravity!
2007-10-31 02:17:09 · answer #4 · answered by slimdude142 5 · 2⤊ 0⤋
We don't know. It's called "dark matter".
2007-10-31 02:13:28 · answer #5 · answered by Anonymous · 0⤊ 2⤋
God
2007-10-31 02:16:57 · answer #6 · answered by Ayo A 5 · 0⤊ 2⤋