Soil Composition/Soil Profile

Front

What is the top layer of soil called?

Back

Horizon O

Front

Which layer is known as the topsoil?

Back

Horizon A

Front

What is the subsoil layer in the soil profile?

Back

Horizon B

Front

What is the layer below the subsoil?

Back

Horizon C

Front

What is the bedrock layer in the soil profile?

Back

Horizon R

Front

What are the three main types of soil?

Back

Clay, Sand, Silt

Front

Which of the following is NOT a type of soil?

Back

Mud

Front

What are the layers of soil called?

Back

Soil Horizons

Front

What is humus?

Back

Organic matter that enriches soil.

Front

What is the process of soil formation?

Back

It begins with the weathering of bedrock.