What process allows perspiration to cool the body

Transpiration and evaporation

Your answer is transpiration and evaporation. More commonly known as sweating. Your body becomes coated in sweat when you exercise, but it is the evaporation of your sweat that ultimately keeps you cool. If you wipe the sweat away with a rag or towel the sweat cannot evaporate so you jeopardize the efficiency of cooling down. I hope this is helpful.

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