Type c soil is the least stable type of soil. Type c includes granular soils in which particles don’t stick together and cohesive soils with a low unconfined compressive strength; 0.5 tons per square foot or less. Examples of type c soil include gravel, and sand.
What Type of Soil Is Least Stable?
There are many types of soil, each with different characteristics that make them more or less stable.
The least stable soil is typically sandy or loamy, with a high clay content.
This type of soil is prone to erosion and is not as effective at holding onto water or nutrients.