The three steps of the nitrogen cycle in order, starting with nitrogen gas in the atmosphere, are (1 point)

O nitrogen fixation, nitrification, and denitrification.
• denitrification, nitrification, and nitrogen fixation.
O nitrogen fixation, denitrification, and nitrification.
O nitrification, nitrogen fixation, and denitrification.

1 answer

The correct order of the three steps of the nitrogen cycle, starting with nitrogen gas in the atmosphere, is:

Nitrogen fixation, nitrification, and denitrification.