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Questions and Answers
Which of the following is NOT a component of soil?
Which of the following is NOT a component of soil?
- Rocks (correct)
- Air
- Minerals
- Water
What is the uppermost layer of soil called?
What is the uppermost layer of soil called?
- Parent rock
- Subsoil
- Topsoil (correct)
- Silt
How is soil formed?
How is soil formed?
- Through sedimentation
- Through weathering (correct)
- Through volcanic activity
- Through erosion
What is the composition of soil?
What is the composition of soil?
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Why do plants, trees, and crops require soil to grow?
Why do plants, trees, and crops require soil to grow?
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Study Notes
Soil Composition
- Water, air, living organisms, and organic matter are all components of soil
- Parent material, such as rock and minerals, is broken down through weathering and erosion to form soil
Soil Layers
- The uppermost layer of soil is called the topsoil or humus
- Topsoil is the most fertile layer, containing the most organic matter and nutrients
Soil Formation
- Soil is formed through the process of weathering, erosion, and decomposition over thousands of years
- Weathering breaks down parent material, while erosion transports it away, and decomposition breaks down organic matter
Importance of Soil
- Plants, trees, and crops require soil to grow because it provides essential nutrients, water, and air
- Soil supports plant growth by anchoring roots, regulating water, and moderating temperatures
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Description
Test your knowledge about soil composition and layers with this quiz! Explore the different components that make up soil and learn about the importance of topsoil in this interactive quiz.
