Which best compares the roles of nitrogen-fixing bacteria and certain decomposers in the nitrogen cycle?
A
Both organisms convert free nitrogen into nitrogen-containing compounds.B
Both organisms convert nitrogen-containing compounds into free nitrogen.C
The bacteria convert free nitrogen into nitrogen-containing compounds, while the decomposers convert nitrogen-containing compounds into free nitrogen.D
The bacteria convert nitrogen-containing compounds into free nitrogen, while the decomposers convert free nitrogen into nitrogen-containing compounds.