Question

define the nitrogen cycle?write the important processes of nitrogen cycle?​

Answer 1

Answer:

Nitrogen Cycle is a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere. It involves several processes such as nitrogen fixation, nitrification, denitrification, decay and putrefaction.

Answer 2

nitrogen forms 78% i.e. the maximum portion of the atmosphere. it is necessary for the maintenance of the cycle of nature.

(1) nitrogen fixation: conversion of nitrogen into nitrates and nitrites through atmospheric, industrial and biological processes.

(2) Ammonification: release of ammonia through decomposition of dead bodies and excretory wastes of organisms.

(3) Nitrification: conversion of ammonia into a nitrite and nitrate.

(4) Denitrification: conversion of nitrogen components into gaseous nitrogen.