How will you demonstrate to that water vapour is present in air?
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during rainy season,time taking to dry the clothes become long due to high water vapour or moisture in air
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a)Take out a bottle of soft drink from the refrigerator and place it on the table. b)Observe it for few minutes.
c)you will see small drops of water appearing on the outer surface of the bottle.
d) This is because water vapour present in the air condenses and forms small drops of water.
e) This activity proves that air contains water vapour.
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