Sweat wets the skin, and when it evaporates, it cools the body, and normally, the body cools itself by sweating. Given these facts, the body cools itself when wetness evaporates from what among the following options:
- skin
 - H 2 O
 - CO 2
 - eyes
 - follicles
 - H20
 - hair
 - heat


 

 skin        