This living system is actively creating nitrogen fertilizers by nitrogen-fixation and destroying nitrogen compounds by a process (nitrification) that yields pure nitrogen gas (which makes up some 78 percent of the air that we breath.)
(This living system; is actively creating; nitrogen fertilizers) (a process; yields; pure nitrogen gas (which makes up some 78 percent of the air) (pure nitrogen gas; makes up; some 78 percent of the air) (the air; breath; we)
This living system a process pure nitrogen gas the air
is actively creating yields makes up breath
nitrogen fertilizers
pure nitrogen gas (which makes up some 78 percent of the air
some 78 percent of the air
we