Mathematics, 25.02.2020 17:29 tajonae04

Help please guys! I have a question??? What is free nitrogen?

A. nitrogen that is ready for plants to use
B. nitrogen that has been fixed by bacteria
C. nitrogen that cannot be used by organisms
D. nitrogen that is returned to the soil by decomposers

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Help please guys! I have a question??? What is free nitrogen?

A. nitrogen that is ready...