Question

(a) Appearance of acne​

Answer 1

Answer:

It most commonly develops on your face, back, neck, chest, and shoulders. If you have acne, you'll typically notice pimples that are white or black. Both blackheads and whiteheads are known as comedones. Blackheads open at the surface of your skin, giving them a black appearance because of oxygen in the air.

Explanation:

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