Guest
asked 3 years ago
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Air is a combination of gases which forms a layer around the Earth. Air is actually retained on Earth only by the force of gravity. This enables the combination of gases which oxygen is, to surround the Earth and maintain life on earth.
However, space, by definition is outside of the Earth's atmosphere. It is the space between the planets and the stars. There is no air in space because all gases are held by gravity to one or other of the planets or stars. The various planets and stars may have air which is insufficient to maintain life, or life as we know it !
Because gravity is actually stronger at ground level than it is further away, there is more air closer to the ground. Gradually, when leaving Earth's atmosphere, the air available dwindles to almost nothing. Some air can be located at about 100 miles above the earth, but after 6 miles from the surface, humans would not be able to breathe enough to live.
However, space, by definition is outside of the Earth's atmosphere. It is the space between the planets and the stars. There is no air in space because all gases are held by gravity to one or other of the planets or stars. The various planets and stars may have air which is insufficient to maintain life, or life as we know it !
Because gravity is actually stronger at ground level than it is further away, there is more air closer to the ground. Gradually, when leaving Earth's atmosphere, the air available dwindles to almost nothing. Some air can be located at about 100 miles above the earth, but after 6 miles from the surface, humans would not be able to breathe enough to live.
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Guest
answered 7 months ago
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