Answer: Bacteria and fungi employ a variety of mechanisms to increase soil organic matter and function, but they do so at the expense of maintaining a healthy population in the soil. Bacteria contribute to ecosystem health by decomposing dead matter and cycling nutrients into useable forms. Bacteria may be found in all habitats and produce the majority of the oxygen on the planet. Bacteria are decomposers in the soil that break down organic compounds.
Explanation: I hope this helps, friend :)