The top layer of soil is the most fertile layer. It is the best for growing crops.
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.
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.
Topsoil.
Topsoil.
The layers of soil from the bottom, or the deepest, layer to top are
Top soil
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.
horizon A
Commonly known as Top Soil.
The top layer of soil is called topsoil. It is rich in nutrients and organic matter, making it ideal for plant growth.
Scientists call the top layer of a soil profile the "O horizon" or "organic horizon." This layer consists of organic material such as leaves, twigs, and other plant debris that are in the process of decomposing.