Perspiration cool the body removes waste chemicals through pores in the skin keeps the skin soft keeps the body warm

helps cool the body

Explanation:

Perspiration is the loss of water from the body. The water contains some other minerals that are dissolved in it. Perspiration is one of the homeostatis mechanism which helps the body to perfectly adjust to its environment. During perspiration, as water is lost through pores, body cools and temperature is lowered. This why during exercise and extreme labor sweat is produced.

currents is the correct answer.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.