Question

what is water vapour

Answer 1

Water vapor, water vapour or aqueous vapor is the gaseous phase of water. It is one state of water within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. 

Answer 2

Answer:

Air also contains water vapours. Water vapour is formed because of the evaporation of water from the surface of seas, rivers and lakes.

Water vapour, after condensation, changes into clouds, rain, fog and snow.

The water vapour in the air can cause change in the weather. The amount of water vapours present in the air is called Humidity.

The more the water vapours in the air, the more the humidity. In Humid season, we feel uncomfortable as our sweat does not evaporate easily.