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Assessment

What is the main process by which nitrogen is converted from atmospheric form to a usable form for plants?

Nitrogen fixationDenitrificationNitrificationAssimilation

Which type of microorganisms are primarily responsible for nitrification?

BacteriaFungiAlgaeProtozoa

In the nitrogen cycle, what is the role of denitrification?

Converting ammonia to nitrateConverting nitrate to nitrogen gasFixing atmospheric nitrogenTransforming organic nitrogen to ammonium