When the humidity is high, ____ is not an effective mechanism of heat loss.
A)vasoconstriction
B)vasodilation
C)sweating
D)convection

Question

Quizplus · Accepted Answer

When the humidity is high, the air is already saturated with water vapor and cannot hold any more moisture. Therefore, sweating is not an effective mechanism of heat loss as the sweat cannot evaporate into the air, which is necessary for the cooling process. Vasoconstriction and convection can still be effective methods of heat loss, while vasodilation can actually lead to an increase in body temperature.

When the Humidity Is High, ____ Is Not an Effective