Advanced Placement (AP), 02.07.2019 16:30, student0724

How is nitrogen returned to the atmosphere during the nitrogen cycle? a) it is returned to the atmosphere in a process called nitrogen fixation. b) it is returned to the atmosphere through denitrification. c) it is returned to the atmosphere through cellular respiration. d) it is returned to the atmosphere through evapotranspiration. e) it is returned to the atmosphere in a process called photosynthesis.

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How is nitrogen returned to the atmosphere during the nitrogen cycle? a) it is returned to the atmo...