Soil Profile Exploration
This worksheet explores the different layers of a soil profile, their characteristics, and their importance in various ecosystems.
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Soil Profile Exploration
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Read each question carefully and provide thoughtful answers. Refer to the provided diagram if necessary.
Observe the soil profile diagram below:
1. Which soil horizon is primarily composed of organic matter, such as decaying leaves and plant debris?
A Horizon
O Horizon
B Horizon
C Horizon
2. The process where water leaches nutrients and minerals from upper soil horizons to lower horizons is called:
Humification
Illuviation
Eluviation
Weathering
3. The horizon is often referred to as the 'topsoil' and is rich in humus.
4. The parent material from which soil is formed is found primarily in the horizon.
5. The accumulation of clay, iron, and aluminum leached from upper horizons occurs in the horizon.
6. The O horizon is always present in every soil profile.
True
False
7. Bedrock is typically found directly beneath the C horizon.
True
False
8. Describe two factors that influence the development of a soil profile.
9. Explain the importance of the A horizon for plant growth.