Sweat wets the skin, and when it evaporates, it cools the body, and sweat is made of salt and water. Given these facts, what wets the skin, and when it evaporates, cools the body among the following options:
- acetic acid
 - salt and water
 - Chlorophyll
 - peachleaf willow
 - reducing acid rain
 - Heat energy
 - heat or cold
 - hydration


 

  salt and water       