Question

Nitrogen cycle. Our atmosphere occupies major portion of nitrogen gas .Nitrogen is one of the essential constituents of all living organisms as our part of proteins ,chlorophyll, nucleic acids and vitamins .The atmospheric nitrogen cannot be taken directly by plants and animals .Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen .once nitrogen is converted into these usable compounds ,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 inorganic nitrogenous compounds to be used by plants again. Quetion no 39. Nitrogen fixation is the conversion of *
N2 to N
N2 to NH3
N2 to NO3
N2 to UREA​

Answer 1

Answer:

Nitrogen cycle

Nitrogen cycle Our atmosphere has 78% nitrogen gas. Nitrogen is one of the essential constituents of all living organisms as part of proteins, chlorophyll, nucleic acids and vitamins. ... Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen

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