Question

when we go to the sun then why our skin which is fair becomes dull whereas out hai which is black becomes reddish​

Answer 1

Answer:

You are right in thinking that melanin has something to do with the answer. Melanin is a pigment found in your skin and hair cells that gives each its color.

It does seem weird that the sun bleaches our hair and darkens our skin. This mostly has to do with hair being dead and skin being alive.

The sun bleaches and destroys the melanin in your hair giving you lighter hair. Since hair is dead, the hair will stay that color until new hair comes in.

Explanation:

HOPE U UNDERSTOOD IT