Question

Nitrogen cycle.............​

Answer 1

Answer:

nitrogen cycle means conversion of nitrogen first into useful nitrogeneous compound then to ammonia,nitrite and nitrates, then again conversion of these compounds into nitrogen.

                                NITROGEN CYCLE

 NITRATE →     DENITRIFICATION         →  NITROGEN  FIXATION

              ↑                                                                           ↓

             NITRITE                                                              PLANT

             ↑                                                                              ↓

             NITRIFICATION  ←   AMMONIA      ←       AMMONIFIACTION

                                               

Answer 2

the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.