You are presented with the quiz "energy leaves from what when sweat contacts with skin" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "evaporation of sweat uses energy, and the energy comes from body heat" and "when sweat comes in contact with the skin it is cooled as the sweat evaporates". 

So, what's the best answer to the question?


 

     body heat      