The bacteria break down water into food. The bacteria change sunlight into minerals. The bacteria combine with sand to form rocks. The bacteria break down plant and animal matter.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile?
Possibilities:
- The bacteria break down water into food.
- The bacteria change sunlight into minerals.
- The bacteria combine with sand to form rocks.
- The bacteria break down plant and animal matter.

The bacteria break down plant and animal matter.