Online GK Series

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

Get Attractive Job


Mohs scale is used to determine :

A degree of brightness of a substance
B degree of hardness of minerals
C degree of viscosity of a liquid
D degree of elasticity of a material
Answer & Explanation
Option: [B]

Your Valuable Comments Please...

Important EBooks for Competitive Exams