Sweat wets the skin, and when it evaporates, it cools the body.
Evaporation is when a liquid turns into a gas.
Sweat cools the body when it turns into a gas.
Sweat cools the body when it

A: Movement of an air mass
B: dry conditions
C: heat produced
D: Decreased precipitation
E: hydration
F: It expands
G: the environment
H: turns into a gas