Soil Horizons Exploration

Soil Horizons Exploration

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

1. Which soil horizon is primarily composed of organic matter like leaves and decomposed plant material?

2. The process of leaching, where minerals and nutrients are washed downwards, is most prominent in which horizon?

3. The   horizon is often referred to as the 'topsoil' and is rich in humus.

4. Partially weathered parent material can be found in the   horizon.

5. The unweathered bedrock that lies beneath all other soil horizons is known as the   horizon.

6. The B horizon is characterized by an accumulation of clay, iron, and aluminum leached from upper horizons.

7. Plant roots primarily grow in the C horizon due to its rich nutrient content.

8. Describe the main difference between the A horizon and the B horizon.

9. Explain why the O horizon is typically darker in color compared to other soil horizons.

Match each soil horizon with its primary characteristic.