Perspiration cools the human body by
A)adding sensible heat to the skin as sweat evaporates
B)extracting sensible heat from the skin as sweat evaporates
C)adding latent heat to the skin as sweat evaporates
D)extracting latent heat from the skin as sweat evaporates

Question

Quizplus · Accepted Answer

When sweat evaporates from the skin surface, it takes away some latent heat with it, resulting in cooling of the body. Therefore, option D is the correct answer. Option C is also partially correct, as sweat releases latent heat during evaporation, but it does not add to the cooling of the body. Options A and B are incorrect as they refer to sensible heat, which is not involved in the cooling mechanism of perspiration.

Perspiration Cools the Human Body by