Humus
Humus explained in an easy to understand way:

Imagine trying to clean out your closet, getting rid of old clothes and items you no longer use to make space for new things. Just like clearing out the closet creates room for new and useful items, decayed plant and animal matter, or humus, enriches the soil, making it fertile for new plant growth. In this analogy, the old clothes represent the decayed organic matter, the closet is like the soil, and the new items signify the nutrients and space created for plants to thrive, showing how both scenarios involve transformation and renewal.
Practice Version

Humus: Decayed plant and animal matter in the soil. Humus. Humus is the organic component of soil, formed by the decomposition of leaves, plants, and animal material.