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Questions and Answers
Which component of soil is formed from decomposed plant and animal material?
Which component of soil is formed from decomposed plant and animal material?
Transported soils are formed in their original position by weathering of parent rocks.
Transported soils are formed in their original position by weathering of parent rocks.
False
What are the three essential nutrients commonly found in fertile soil?
What are the three essential nutrients commonly found in fertile soil?
Nitrogen, phosphorus, and potassium
_____ is a major component of sand.
_____ is a major component of sand.
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Match the following types of soil to their characteristics:
Match the following types of soil to their characteristics:
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Study Notes
Soil
- A thin layer of Earth's surface composed of rock particles, organic material, and decayed plant and animal material.
Soil Components
- Humus: Decomposed plant and animal remains.
- Silica: A major component of sand.
- Clay: Small mineral particles
- Sand: Larger mineral particles
Soil Fertility
- The ability of the soil to sustain life.
- Determined by:
- Water Retention Capacity: How well a soil can hold water.
- Presence of Essential Nutrients: Includes nitrogen, phosphorus, and potassium.
- Organic Matter: Improves water retention and nutrient availability.
Soil Classification
-
Sedentary (Residual) Soil: Formed in place from the weathering of parent rocks.
- Examples are black soil, laterite, and red soil.
-
Transported Soil: Formed from sediments moved by forces like water, wind, or ice.
- Examples include alluvial soils.
- Composed of transported sediments.
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Description
Explore the fundamental concepts of soil, including its composition, fertility, and classification. This quiz delves into the roles of humus, clay, sand, and the factors that determine soil health. Test your knowledge on different soil types and their formation processes.
