Most of the organic matter in soil comes from the decomposition of what material?

Question

Quizplus · Accepted Answer

Most of the organic matter in soil comes from the decomposition of plant material, including leaves, twigs, roots, and other plant debris. Animal material can also contribute, but it is a smaller portion of the overall organic matter content in soil. Fungi, protozoa, and algae may play a role in the decomposition process, but they do not typically contribute the majority of organic matter in soil.

Most of the Organic Matter in Soil Comes from the Decomposition