Fact 1: Evaporation of sweat uses energy, and the energy comes from body heat. Fact 2: Heat When exercising, the body creates excess heat. Given the two facts above, evaporation of sweat uses energy, where does the energy come from?

Choose your answer from:
a). vapors.
b). temperature.
c). expelled.
d). environment.
e). hydration.
f). water vapor.
g). The Sun.
h). exercise.
The answer is:
h).