You are presented with the question "What wets the skin, and when it evaporates, cools the body?" and the following answer choices: 
- acetic acid
 - salt and water
 - Chlorophyll
 - peachleaf willow
 - reducing acid rain
 - Heat energy
 - heat or cold
 - hydration

Now knowing that sweat wets the skin, and when it evaporates, it cools the body and sweat is made of salt and water, choose the best answer.


 

  salt and water       