How is the nitrogen cycle important to humans?
A. It produces free nitrogen that humans can breathe.
B. It converts nitrogen into a form that humans can obtain by eating other organisms.
C. It produces nitrogen compounds that humans can breathe.
D. It converts nitrogen into a form that humans can obtain by absorbing it through their skin.
Answers: 1
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How is the nitrogen cycle important to humans?
A. It produces free nitrogen that humans can breathe...
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