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No, it does not. oxygen makes up 78%, oxygen makes up 20% and argon, carbon, and water vapor make up the last 2%.
0% (at -44 degrees F) to 4% (at 86 degrees F). It's produced from the evaporation of liquid water, and is invisible. Almost all of it is contained in the troposphere. It's the condensation of water vapor that forms clouds, rain, snow, and other precipitation.
If the air in the in the upper atmosphere were warmer than the water vapor that was continued in the air would make the earth colder in the air.
The amount of water vapor in air varies based on the temperature and density of air. The amount of water vapor ranges from a trace amount up to 4%.
The earth's atmosphere is composed primarily of nitrogen and oxygen. Nitrogen is 78 percent of the atmosphere, while oxygen is 20 percent of the atmosphere. The remaining two percent is made up of Argon (0.9340%), Carbon dioxide (0.0397%), Neon (0.001818%), Helium (0.000524%), and Methane (0.000179%). The atmosphere also includes water vapor. It is less than 0.25% of the atmosphere as a whole, but may be between one and five percent in any given area.
0 to 4 percent
No, it does not. oxygen makes up 78%, oxygen makes up 20% and argon, carbon, and water vapor make up the last 2%.
Water vapor is the gas state of water, and contributes to humidity in the atmosphere. Water vapor absorbs heat and can make the air feel warmer than it really is.
Water Vapor
Water vapor is the gas state of water, and contributes to humidity in the atmosphere. Water vapor absorbs heat and can make the air feel warmer than it really is.
0% (at -44 degrees F) to 4% (at 86 degrees F). It's produced from the evaporation of liquid water, and is invisible. Almost all of it is contained in the troposphere. It's the condensation of water vapor that forms clouds, rain, snow, and other precipitation.
If the air in the in the upper atmosphere were warmer than the water vapor that was continued in the air would make the earth colder in the air.
The amount of water vapor in air varies based on the temperature and density of air. The amount of water vapor ranges from a trace amount up to 4%.
The earth's atmosphere is composed primarily of nitrogen and oxygen. Nitrogen is 78 percent of the atmosphere, while oxygen is 20 percent of the atmosphere. The remaining two percent is made up of Argon (0.9340%), Carbon dioxide (0.0397%), Neon (0.001818%), Helium (0.000524%), and Methane (0.000179%). The atmosphere also includes water vapor. It is less than 0.25% of the atmosphere as a whole, but may be between one and five percent in any given area.
As the earth cooled, water vapour in the atmosphere condensed to a liquid (water) and fell to the earth as rain the make the oceans.
When you see a list of the components of air, they refer to DRY air, because the amount of water vapor varies. If the relative humidity is 100% and the temperature is 104F, water vapor would make up 7% of that air. I doubt the dew point has ever hit 104F, so almost certainly it's never been that high and is usually a good bit less. When temperatures drop well into the double digits below 0, there is only a barely-detectable amount of water vapor. So those component lists floating around describes dry air, or the make-up of the air that isn't water vapor. Those numbers are fairly constant whereas if you tried to include water vapor, you couldn't come up with hard numbers because they are all displaced by any water vapor in proportion to how much of the dry air they make up.
All water in the cycle must pass through the atmosphere as water vapor,even though the atmosphere only holds enough to make a global layer about 2mm deep.The water vapor content in the air ranges from almost nil when temperatures are well into the double digits below zero (C or F) and dew points are even lower. In contrast, saturated air at 104F results in 7% of the air. I doubt its ever really been THAT high tho.