bedrock
Fossils are not found in the soil. They are found in layers of rock after time.
Soil is found in the topmost layer of the Earth's crust, known as the "soil layer" or the "pedosphere." It typically ranges from a few centimeters to a few meters in thickness and is essential for supporting plant life and sustaining ecosystems.
The A horizon.
There are four layers and the four layers are top layer called the organic layer, Upper soil layer, middle soil layer, and the last one is lowest layer.
The layer of solid rock found under all soil is known as bedrock. It serves as a foundational layer that underlies all soil and provides stability and structure to the Earth's surface.
topsoil.
The layer of soil is called the topsoil, which is the uppermost layer of soil that contains most of the organic matter and nutrients that plants need to grow. It is typically the darkest and richest layer of soil, where most plant roots are found.
soil erosion
bedrock
When you dig up dirt you get to this hard soil like substance. Beneath this is the hard rock you're talking about. It is called Bedrock.
The layer of solid rock beneath loose soil is called bedrock. This layer provides stability and support to the overlying soil and materials.