what is soil organic materials?

土壤的成分是什么?

What does soil consist of?

STEAMPOWER同志，organic是有机的，不是无机的...

what is soil organic materials?土壤中的无机质是什么?
答:The soil organic materials refer to the elements such as Ka Na Cu Fe Zn and so on.

Organic Soil is a naturally occurring, unconsolidated or loose material on the surface of the earth, capable of supporting life. In simple terms, soil has three components: solid, liquid, and gas. The solid phase is a mixture of mineral and organic matter. Soil particles pack loosely, forming a soil structure filled with voids. The solid phase occupies about half of the soil volume. The remaining void space contains water (liquid) and air (gas).

the organic component of soil.

Fallen leaves and animal's carcass & excrement.