earth's atmosphere do for earth? and this isn't homework! for real.
2007-01-27 09:41:11 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
79% nitrogen 20% oxygen and 1% trace gases (helium, carbon dioxide etc).
Layers of atmosphere: troposphere, stratosphere, mesosphere, thermosphere, exosphere.
What does it do? Regulates temperature (keeps us from freezing to death), gives animals something to breather (provides life), provides partial sheild from radiation.
2007-01-29 03:50:19 · answer #1 · answered by Christina 6 · 0⤊ 0⤋
Oxygen and nitrogen make up the Earth's atmosphere. The layers are troposphere, stratosphere, mesosphere, thermosphere and exosphere and in the stratosphere, there is the ozone layer which absorbs ultraviolent radiation rays from the sun. The exosphere slows asteroids down from hitting Earth at all or somewhat slower.
2015-05-11 15:30:13 · answer #2 · answered by Random 1 · 0⤊ 0⤋
Heard of wikipedia? How can someone know how to use Yahoo Questions but not know about wikipedia?
2007-01-27 09:45:25 · answer #3 · answered by Anonymous · 0⤊ 2⤋