27. (a) Why to people perspire a lot on a hot bumid day? (b) Name the factors that affect evaporation
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Answer:
Perspiration, also known as sweating, is the production of fluids secreted by the sweat glands in the skin of mammals.[1]
PerspirationOther namesSweating, hidrosis, diaphoresisDroplets of perspiration on the skinSpecialtyDermatologyCausesFever Heat Hyperthermia
Two types of sweat glands can be found in humans: eccrine glands and apocrine glands.[2] The eccrine sweat glands are distributed over much of the body and are responsible for secreting the watery, brackish sweat most often triggered by excessive body temperature. The apocrine sweat glands are restricted to the armpits and a few other areas of the body and produce an odorless, oily, opaque secretion which then gains its characteristic odor from bacterial decomposition.
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