A Horizon
The topsoil is the finest soil layer. Soil 'layers' are called horizons.
The top layer of soil is called the topsoil. It is the outermost layer that contains the highest concentration of organic matter and nutrients, making it ideal for supporting plant growth.
The soil layer of rock beneath the soil is called bedrock. It is the solid rock layer that underlies the loose topsoil and subsoil layers.
they are called Horizons.
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.
== == This layer is called bedrock.
Bedrock
The uppermost layer of soil is called topsoil. It is the layer that contains the highest concentration of organic matter and nutrients, making it crucial for plant growth.
This layer of solid rock is called bedrock.
It is called 'topsoil'
crust
The layer of solid rock below the soil is called bedrock. It is composed of consolidated rock that serves as the foundation for the soil layer above it.