The water molecules "hold on" to the oxygen molecules and all the other dust molecules, etc. that are in the air.
yes that makes humidity yes that makes humidity
Any watertight and airtight container
what is the relative humidity of air that holds all the water it can
Air pressure holds water in the air. When the pressure builds up and the air gets too saturated to hold any more moisture, then precipitation will occur.
cold air !
A warm air mass and a cold air mass holds the same amount water vapor but the air mass is smaller
Hot air.
Warmer air. :-)
SATURATED
It is humid.
no, warm air holds more water vapour than cold air
That is called the 'dew point'.
The warm air mass
when it holds all the water vapor it can hold