Question

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 denitrification. d. it is returned to the atmosphere through cellular respiration. it is returned to the atmosphere through evapotranspiration. please select the best answer from the choices provided

Explanation:

Denitrification is the process in the nitrogen - cycle where nitrogen compounds are reduced to nitrogen gas and returned to the atmosphere. Nitrogen fixation is the process of converting atmospheric nitrogen into a usable form for plants. Cellular respiration is related to energy production in cells and not to returning nitrogen to the atmosphere. Evapotranspiration is related to water movement in the environment, not nitrogen.

Answer:

C. It is returned to the atmosphere through denitrification.