Question

Roofs of houses are sprinkled with water during summer why?

Answer 1

Evaporation causes cooling!
When water is sprinkled on the roof top or ground it evaporates because of the latent heat of vaporisation leaving behind a cooling effect. in case of ground, this evaporation causes cooling of the surrounding area after some time; whereas in case of roof top the room beneath is cooled.

Answer 2

Answer:

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