Question

the process of conversation of free atmospheric nitrogen into usable from is known as ??​

Answer 1

Answer:

As we know molecular nitrogen cannot be utilized directly by plants. It has to be fixed or converted into compounds prior to utilization. This conversion of atmospheric nitrogen into usable compounds like nitrate, ammonia etc is called nitrogen fixation.

Answer 2

Answer:

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Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants.