<prompt> When an inddividual is resting in a room with the air temperature 21degC and the humidity of 80, the greatest amount of heat lost from body is byElevation of body metabolismVaporisation of sweatRespirationRadiation  <response>: During intense exercise, the body loses 85 of its heat through sweating. Radiation similar to heat leaving a woodstove. This normal process of heat moving away from the body usually occurs in air temperatures lower than 68degF 20degC. The body loses 65 of its heat through radiation. Ref: guyton and hall textbook of medical physiology 12 edition page number:867,868,869 