Question

Which of the following statements describe the process of denitrification in the nitrogen cycle?

• A. Conversion of inert form of nitrogen into it's organic form.
• B. Use of nitrates for the synthesis of nitrogenous compounds by the plants.
• C. Formation of Ammonia from nitrates.
• D. Release of free nitrogen back into the atmosphere.

Answer 1

The correct option is D Release of free nitrogen back into the atmosphere.

The denitrifying bacteria utilise the nitrogen source to gain oxygen. Thus, the nitrogen source is broken down thereby liberating the free nitrogen back into the atmosphere.