Question

Nails is made up of ?​

Answer 1

Answer:

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Nails themselves are made of keratin (say: KAIR-uh-tin). This is the same substance your body uses to create hair and the top layer of your skin. You had fingernails and toenails before you were even born.

Explanation:

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Answer 2

Answer:

iron or steel. The silver coloured are made of steel so that they do not rust.