Question

Our hair and nails contain *
1 point
(a) Phosphorus
(b) Protein
(c) Calcium
(d) Chlorine

Answer 1

Answer:

$\huge \red{Protein}$

Thus, hair and nails are having a protein called keratin in them. Thus the correct answer is (B) i.e, protein. Note: Hair and nails are part of the human exoskeleton system.

Answer 2

${ \huge{ \red{ \mathbb{ \colorbox{black}{OPTION B}}}}}$

${ \huge{ \red{ \mathbb{ \colorbox{black}{PROTEIN}}}}}$