Fri May 30, 2008 By:

give answer of 3 mrks

Expert Reply
Wed June 18, 2008

A desert cooler is an evaporative cooler i.e in order to cool, it relies on the evaporation of water to extract heat. Hot and dry conditions allow for maximum evaporation and therefore maximum cooling. Cooler or more humid temperatures similarly make for less evaporation and less cooling.

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