The best answer to the question "Bacteria in soil feed on" is:
a. organic matter
1. Bacteria in soil are essential decomposers that break down organic matter such as dead plants, animals, and other organic materials.
2. They play a crucial role in the nutrient cycle by converting complex organic compounds into simpler forms that can be used by plants.
3. This process releases nutrients back into the soil, enriching it and supporting plant growth.
4. Bacteria feed on organic matter as a source of energy and nutrients for their survival and growth.
Therefore, the correct choice is a. organic matter.
