Soil Horizons Exploration

Soil Horizons Exploration

Read each question carefully and answer to the best of your knowledge. Use the provided image to help you answer questions about soil horizons.

Observe the diagram below, which illustrates the different layers of soil, also known as soil horizons.

1. Which soil horizon is primarily composed of organic matter like decaying leaves and plants?

2. The 'topsoil' layer, rich in humus and essential for plant growth, is typically found in which horizon?

3. The B horizon is also known as the  , where minerals and clay accumulate.

4. The C horizon is made up of partially weathered  , which is the parent material for the soil.

5. The unweathered bedrock is found in the   horizon.

6. All soil horizons are present in every type of soil.

7. The O horizon is typically very dark due to the presence of decomposed organic matter.

8. Describe the main characteristic of the A horizon and why it is important for plant life.

9. Explain the difference between the C horizon and the R horizon.

Match each soil horizon with its primary characteristic.