Page 2 - 3. LESSON NOTES-EVAPORATION
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o  Content of water vapour in the atmosphere is known as humidity. It is a well-
                  known fact that air can hold water upto a certain amount. If the amount of water
                  in atmosphere is already high then rate of evaporation will decrease. Therefore,
                  decreasing the humidity also increases the rate of evaporation.















                   o  It is commonly observed that clothes dry at a fast rate during windy days.
                       This is because with the increase in wind speed the alter particles move
                       away with the wind which in turn decreases the amount of water vapour from
                       the atmosphere. Therefore, increasing the wind speed increases the rate of
                       evaporation.































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