Question

25.1.4 Quiz: Carbon and Nitrogen Cycles

Question 6 of 10
Which are forms of nitrogen that are usable by humans?
O A. Nodules, roots, fertilizer
OB. Oxygen, carbon, water
C. Phosphorus, nitrates, nodules
O D. Ammonia, nitrates, nitrites
SUBMIT

Answer 1

Ammonia, nitrates, and nitrites are usable forms of nitrogen for humans.

Step-by-step explanation:

The forms of nitrogen that are usable by humans are ammonia, nitrates, and nitrites. Ammonia (NH3) is the primary form of nitrogen that is used by plants to synthesize amino acids and proteins. Nitrates (NO3-) and nitrites (NO2-) are also important nitrogen compounds that are taken up by plants from the soil and used in the process of protein synthesis.

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