Question

explain nitrogen cycle?​

Answer 1

Answer:

nitrogen cycle is biogeochemical cycle by which nitrogen is converted into multiple chemical from as it circulates among atomosphere ,terriestrial and marine ecosystem important process in the nitrogen cycle include fixation ,amonification nitrification, and denitrification.

Answer 2

Answer:

Nitrogen is found in its gaseous form in the atmosphere. The atmosphere contains about 78 percentage of nitrogen . Plants and animals can't directly consume the nitrogen present in the atmosphere . This work is done by the blue green algae or by nitrogen fixing bacteria present in the soil . They fix the atmospheric nitrogen and converts it into nitrites and nitrates . Plants consume these nitrates and nitrites from the soil through the roots . Nitrogen is used to synthesis amino acids , protein , etc . in the plants . Herbivores feed on these plants . When they die , the bacteria and fungi present in the soil decompose their dead bodies . Thus , the organic nitrogen present in their bodies is converted to the inorganic nitrates and nitrites . These are further converted into nitrogen gas and released in the atmosphere by certain specialized bacteria , thus balancing the percentage of nitrogen in the atmosphere.