Question

what is water and the process of water vapour?

Answer 1

Water is a transparent and nearly colourless substance that is the main constituent of earth's streams, lakes and ocean, and the fluids of most living organisms.
Sun is the main source of energy which causes water to evaporate. When the water gets heat up then water changes in the form of water vapour.
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Answer 2

Answer:

Water vapour is water in gaseous instead of liquid form. It can be formed either through a process of evaporation or sublimation. ... Water vapour in the atmosphere is often below its boiling point. When water is boiled the water evaporates much faster and makes steam.