The Discomfort You Feel on a Humid Day is Due

Question

The discomfort you feel on a humid day is due to the failure of
A) radiation.
B) conduction.
C) convection.
D) evporation.

Accepted Answer

The discomfort felt on a humid day is primarily due to the failure of evaporation. When it's humid, the air is already saturated with moisture, which significantly reduces the rate at which sweat can evaporate from the skin. Since evaporation of sweat is a key mechanism through which the body cools itself, its inefficiency in high humidity results in a feeling of discomfort.