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There is no sharp boundary to the atmosphere: It decreases in pressure gradually, until the amount of gas present is effectively nil.
Many authorities define the end of the atmosphere at 10,000 km (6,200 mi.) above Earth's surface, although there is no significant difference in composition, temperature, or pressure between a point 8,000 km (5,000 mi.) above Earth or a point 12,000 km (7,500 mi.) above Earth.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoWe are living and breathing in Earth's atmosphere which begins on the ground and continues to space.
Wiki User
∙ 7y agoThe cutoff between the atmosphere are space is usually considered to be 63 miles in altitude, but there are still traces of the atmosphere higher up.
Wiki User
∙ 13y agoThe atmosphere gradually becomes thinner, as you go higher up. At about 100 kilometers altitude it becomes so thin that you may consider that as "outer space".
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∙ 13y ago80 kilometers
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How far is the start of the atmosphere from the surface of earth?
The atmosphere begins at the surface of the Earth and extends to space. The upper levels are the thermosphere (up to about 500-650 km altitude) and the exosphere (generally from 500 to 2000 km altitude but is nearly a vacuum).
What happens to the density of the atmosphere as you go up higher?
temperature and altitude
How does altitude in the atmosphere affect air pressure?
The greater the altitude, the lower the air pressure.
What is the altitude where clouds form called?
The atmosphere
Does the density of the earth's atmosphere increase with altitude?
The atmosphere becomes less dense with altitude. Atmosphere, thin though it is, has weight, and it is the weight of the air above which compresses the air below it, to greater density.
How far is the start of the atmosphere from the surface of earth?
The atmosphere begins at the surface of the Earth and extends to space. The upper levels are the thermosphere (up to about 500-650 km altitude) and the exosphere (generally from 500 to 2000 km altitude but is nearly a vacuum).
The troposphere is the lower atmosphere in which you live it extends up from ground?
yes
Is air denser at the earth's surface than in the atmosphere?
The atmosphere begins at the Earth's surface (or the ocean's), and extends upward. Generally air density decreases with altitude, although temperature differences can alter that somewhat.
What happens to the density of the atmosphere as you go up higher?
temperature and altitude
The atmosphere actually extends beyond the Moon?
That depends a bit on how you understand "actually". Earth's atmosphere gets thinner and thinner (less dense) as you go away from Earth; at an altitude of about 100 kilometers, you are in outer space (by definition), but the atmosphere can still make satellites slow down. At an altitude of a few hundred kilometers, even that becomes insignificant.
What happens to the temperature in the atmosphere as you move up into altitude?
It gives you stiff nipples.
When altitude increases does air density?
The density of the atmosphere decreases with altitude.
Why does the density of the atmosphere decrease with height?
The Earth's atmosphere declines with altitude.
Does air pressure change with altitude?
The higher up you are the lesser the air pressure in the atmosphere.
Which layer extends to an average altitude of about 12 km?
Troposphere
At what heights in the atmosphere is the ozone layer situated?
The atmosphere extends to great lengths. The ozone however extends to 25 km.
The temp in the atmosphere approaches -90 Celsius at an altitude of about what?
The temp in the atmosphere approaches -90C at an altitude of 80 kilometers.
