In most soils the overall population (numbers)of microorganisms changes with time,generally following changes in the _____.
A)supply of decomposable organic matter
B)supply of oxygen
C)pore space
D)availability of root infection sites
E)concentrations of antibiotics

Question

Quizplus · Accepted Answer

The population of microorganisms in soil is primarily dependent on the supply of decomposable organic matter. As this organic matter is broken down, it provides a food source for microorganisms and their population increases. Conversely, when the supply of organic matter is depleted, the microorganism population decreases. This is why soil health is so important, as healthy soil contains a diverse array of microorganisms that help break down organic matter, recycle nutrients, and maintain soil structure.

In Most Soils the Overall Population (Numbers)of Microorganisms Changes with Time,generally