By a process termed nitrogen fixation, bacteria are able to convert dinitrogen gas to ammonia, a form of nitrogen that is readily used by the plants.
(a process; termed; ) (bacteria; are; able to convert dinitrogen gas to ammonia) (bacteria; to convert; dinitrogen gas; to ammonia) (a form of nitrogen; is readily used; by the plants)
a process bacteria bacteria a form of nitrogen
termed are to convert is readily used
able to convert dinitrogen gas to ammonia
dinitrogen gas to ammonia
by the plants