What is the loss of soil by the action of natural forces called?

The loss of soil by the action of natural forces is referred to as erosion. Erosion involves the processes that remove soil and rock from one location and transport it to another, often facilitated by wind, water, or ice. This process can occur in various landscapes and is a natural phenomenon that can significantly impact soil health, agricultural productivity, and the overall environment.

Degradation refers to the decline in the quality of soil, which can occur through erosion but also involves factors like nutrient loss, pollution, and compaction. Leaching is the process of soluble substances being washed out of the soil, typically involving water movement, but it does not encompass the physical removal of soil material. Compaction refers to the compression of soil particles, which can impact its structure and porosity but does not involve soil loss. Therefore, the most accurate term to describe the loss of soil through natural forces is erosion.