Which of the following is a correct statement about the nitrogen cycle?

Practice question

Question

Which of the following is a correct statement about the nitrogen cycle?

Options

Choose one · Correct answer highlighted

Plants directly absorb nitrogen gas from the air Denitrification converts nitrates into nitrogen gas Correct Nitrogen fixation releases nitrogen gas into the atmosphere Animals directly fix atmospheric nitrogen

Explanation

Denitrification is a microbial process that converts nitrates into nitrogen gas, returning it to the atmosphere.

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