Which of the following statements about the nitrogen cycle is correct?

Practice question

Question

Which of the following statements about the nitrogen cycle is correct?

Options

Choose one · Correct answer highlighted

Plants directly absorb atmospheric nitrogen Denitrification converts nitrates into nitrogen gas Correct Nitrogen fixation releases nitrogen gas into the air Decomposers are not involved in the nitrogen cycle

Explanation

Denitrification is the process by which nitrates are converted back into nitrogen gas by bacteria, releasing it into the atmosphere.

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