How much the amount of water vapour presents in air
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The water vapour content in the atmosphere varies from place to place and from time to time because the humidity capacity of air is determined by temperature . At 30degree Celsius
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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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