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

Q.

Which of the following adds/add nitrogen to the soil?

I. Excretion of urea by animals
II. Burning of coal by man
III. Death of vegetarian

Select the correct answer using the codes given below.

A I only
B II and III only
C I and III only
D I, II and III
Answer & Explanation
Option: [C]

Your Valuable Comments Please...

Important EBooks for Competitive Exams

VIEW ALL