What are the three major functions of skin?

Following are the three major functions of skin.

1) Skin provides protection to the inner surface of the body from pathogens such as bacteria and viruses etc.

2) Skin have small pores through which sweat is released in order to regulate body temperature.

3) Skin provides sensation due to presence sensory cells present on it. These sensory cells send massages to the nervous system and nervous system act according to the condition of the environment.

answer: blah

explanation:

bc blah

im not intirely sure but i think the anwser is d relative humidity