Online GK Series

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

Connect with Universities & Study Abroad Experts Instantly Connect Now

Q.

Living organisms require at least 27 elements, of which 15 are metals. Among these, those required in major quantities, include

A sodium, magnesium, copper and manganese
B potassium, sodium, magnesium and calcium
C potassium, molybdenum, copper and calcium
D potassium, manganese, copper and calcium
Answer & Explanation
Option: [B]

Your Valuable Comments Please...

Important EBooks for Competitive Exams

VIEW ALL