2007-01-18 14:09:27 · 5 answers · asked by ANDREW H 4 in Science & Mathematics ➔ Astronomy & Space
The four layers of the atmosphere are the troposphere, the stratosphere, the mesosphere and the thermosphere. The ozone layer is in the mesosphere and stratosphere and the ionosphere is in the thermosphere.
The top of the atmosphere is ill-defined but only about 0.00001% of it is above 110km.
2007-01-18 23:01:38 · answer #1 · answered by tentofield 7 · 2⤊ 0⤋
There is no distinct edge or upper limit to the atmosphere. It just gets thinner and thinner the higher you go. One unofficial definition of the top is 100 kilometers up. The X-prize was awarded based on SpaceShipOne reaching an altitude higher than 100 kilometers. Another is 50 miles up. NASA gave astronaut wings to X-15 pilots that flew higher than 50 miles. But traces of very thin gasses that can be identified as being part of the Earth's atmosphere can be found many hundreds of miles up.
2007-01-18 14:17:13 · answer #2 · answered by campbelp2002 7 · 1⤊ 0⤋
The atmosphere is all around us. It' just that it is made up of layers. The layer that we live in is breatheable, the rest are not.
I can't think of the names of all the layers but off the top of my head, Stratosphere, ionosphere ozone layer are all layers.
2007-01-18 14:17:32 · answer #3 · answered by Chris S 2 · 0⤊ 0⤋
if i'm not mistaking i think that it is 138 miles up
2007-01-18 14:19:59 · answer #4 · answered by day dreamer 1 · 0⤊ 0⤋
3.23 i just looked it up
2007-01-18 14:12:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋