GENERAL HISTOLOGY

Detailed explanation-1: -Gaseous state of water is called water vapour. It is formed when water absorbs energy and evaporates turning into gaseous substance.

Detailed explanation-2: -(Also called aqueous vapor, moisture.) Water substance in vapor form; one of the most important of all constituents of the atmosphere.

Detailed explanation-3: –Water vapor is water in its gaseous state-instead of liquid or solid.It is totally invisible.-When the air gets saturated with the water vapour, at a specific temperature it will form frost as it starts to condense.

Detailed explanation-4: -Fog shows up when water vapor, or water in its gaseous form, condenses. During condensation, molecules of water vapor combine to make tiny liquid water droplets that hang in the air. You can see fog because of these tiny water droplets. Water vapor, a gas, is invisible.