Q: Fact 1: When the body is hot , sweat is produced to cool the body. Fact 2: We walked and sweated and sweated. Given the two facts above, what causes the body to get hot?

pick from the following.
i. energy
ii. walking
iii. cigarettes
iv. Pesticides
v. our star
vi. sun's heat
vii. heat
viii. friction
A:
ii.