Question

a) how is gaseous nitrogen fixed by the plants
b) schematically depict of nitrogen cycle in nature
c) mention any one difference between nitrogen fixation and nitrification.

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Answer 1

a)gaseous nitrogen is fixed by leguminous plans by special nodules like structure in which rhysobium is present
b)nitrogen in atmosphere is fixed by lightning or blue green algae in soil in the form of compounds plants use these compounds to grow then when plants die or animals which eat them die bacteria called nitrozomonas convert it into atmospheric nitrogen
c)nitrogen fixation refers to fixation of nitrogen by plants in soil whereas nitrification means fixing of nitrous oxide in soil