What is in humid air?

Answer 1

At 30oC, there is 30g of water per cubic meter of air at 100% relative humidity (1). 30g is about 1/8th the amount of liquid in a normal soft drink can, or about the volume of 1 gulp. A cubic meter will hold over 33,000 of the same 30g gulps of water.

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So the correct answer is: humid air is almost entirely filled with nothing, and then a very small fraction of that air is filled with water.

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(1) Source: http://en.wikipedia.org/wiki/Humidity

Answer 2

Humidity refers to the amount of water vapor the air is holding at a specific time. Water vapor enters the air primarily by evaporation. Most evaporation occurs from oceans because they are such large bodies of water.

Evaporation also occurs from rivers, streams, lakes, swimming pools, puddles, wet clothes on a clothes line, and from your body after you have finished a hard workout. Water vapor molecules weigh less than air molecules. As water vapor molecules are added to the air, the air pressure is lowered. Humid air, air that is filled with water vapor molecules, exerts less air pressure than dry air.

When you hear the meteorologist say that the barometer is dropping, that is an indication that air pressure is lowering. This should tell you that moist humid air is moving into your area.

Answer 3

Humid air contains a higher concentration of water vapor compared to dry air. This moisture can come from evaporation, bodies of water, or other sources. Humid air can feel sticky and might lead to condensation in the form of clouds or precipitation.

Answer 4

humid nitrogen

Answer 5

it is basicly really wet air