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Article name:What is melanin and how does it affect our eye,skin and hair color? is in Newsela

Article NameWhat Is Melanin And How Does It Affect Our Eyeskin And Hair Color Is In Newsela class=

Sagot :

Answer:

Full explanation!

Explanation:

3. would be A because physical in this context means what is on the outside. So, it'd be A.

4. would be cause and effect because it gives you a cause and shows how it affects something/one.