IDNLearn.com: Your trusted source for finding accurate answers. Our platform is designed to provide quick and accurate answers to any questions you may have.
There are different reasons for formation off things. The blackheads are formed when sebaceous glands become clogged.
When sebaceous gland's duct is known to be blocked by sebum, a whitehead is therefore seen or show forth on the skin surface.
When the built up material oxidizes and dries, it therefore darkens, and then create a blackhead.
Learn more about blackheads from
https://brainly.com/question/4118643