Nitrogen-fixing bacteria in the soil or sea convert atmospheric nitrogen gas to nitrites and nitrates, which can then be used by plants (see nitrogen cycle ).
(Nitrogen-fixing bacteria in the soil or sea; convert; atmospheric nitrogen gas; to nitrites) (nitrates; can be used; by plants (see nitrogen cycle; T:then)
Nitrogen-fixing bacteria in the soil or sea nitrates
convert can be used
atmospheric nitrogen gas to nitrites
by plants (see nitrogen cycle T:then