Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Q.

The production of excess pigment in the skin is stimulated mainly by :

A Infra red Rays
B Vitamin C
C Ultraviolet Rays
D Vitamin D
Answer & Explanation
Option: [C]

Your Valuable Comments Please...

Recommended Books for Competitive Exams

VIEW ALL