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]