What best describes the composition of soil

Humus and rock fragment best describes the composition of soil.

Explanation:

Besides that, soil also contains minerals, air, and water, usually 45% minerals, 20-30% water and 20-30% water. In a rainy reason amount of water increases and in sunny day its amount will be less. The Amount of air and water in soil is changing constantly. Humus is the organic compound that is formed from the decomposition of living organisms and dark and brown color. Soil provides home for various animals and also provides nutrients to plants.