Question

How many of the following statements are true for nitrogen cycle?
(i) Atmospheric nitrogen is fixed into nitrogenous compound like ammonia by Rhizobium bacteria.
(ii) Ammonia is converted first into nitrites and then nitrates by the action of Nitrosomonas and Nitrobacter
respectively, this process is called nitrification.
(iii) The plants absorb nitrogen compounds from the soil with water and convert them into plant proteins.
(iv) The soil contains denitrifying bacteria called Pseudomonas which convert nitrates into free nitrogen which
goes back into the atmosphere. The process is called denitrification.
(v) When the plants and animals die, the decomposers present in the soil decompose the proteins of dead
plants and animals into ammonia. This process is called ammonification.​

Answer 1

Answer:

3rd is the answer

Explanation:

As the plants cannot intake the nitrogen directly from air so the absorb from the ammonia on or in the soil, and is used for their growth.