When the body is hot , sweat is produced to cool the body.
Sweat glands produce more sweat.
When the body is hot, something coming from a gland is produced to cool the body.
When the body is hot, what cools the body?

[1] Movement of an air mass
[2] Something with a head, thorax, and abdomen
[3] Something coming from a gland
[4] Something from a shirt
[5] heat is produced
[6] Something from an organ
[7] Chemical energy
[8] Something from a bone