Collect mformatton on sebum and prepare a news bulletin, display it on bulletin board.

Explanation

1) Sebaceous glands are present in the skin. These glands are also known as oil glands.
2) They produce an oily substance called sebum.
3) The sebaceous gland is like a sack. It has a duct through which it opens into the hair folicle.
4) The sebum is sent outside through the hair folicle to the outside of the skin.
5) Sebum prevents the skin from becoming dry.