Question

describe nitrogen cycle in 100 words

Answer 1

nitrogen cycle is the biogeochemical process by which nitrogen is converted into different chemical forms as it circulates in the atmosphere and in the Terristrial and marie ecosystem. the various processe in nitrogen cycle can broadly be classified as fixation, ammonification,nitrification,and denitrification.

Answer 2

Nitrogen is one of the essential constituents . The atmospheric nitrogen cannot be taken directly by plants and animals. Certain bacteria and blue blue green algae present in the soil fix nitrogen from the atmosphere and convert it into compounds of nitrogen. It can be utilized by plants from the soil through their root system. Nitrogen is then used for the synthesis of plant proteins and other compounds. Animals feeding on plants get these proteins and other nitrogen compounds.

When plants and animals die, bacteria and fungi present in the soil convert the nitrogenous wastes into nitrogenous compounds to be used by plants again. Certain other bacteria convert some part of them to nitrogen gas which goes back into the atmosphere. As a result, the percentage of nitrogen in the atmosphere remains more or less constant. This whole process is known as nitrogen cycle.

It is a little bit long.

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