Question:
Soil primary particles sand, silt and clay are arranged to form which of the following :
Soil primary particles sand, silt and clay are arranged to form which of the following :
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Always distinguish between a Ped (naturally occurring soil aggregate) and a Clod (man-made soil mass produced by agricultural machinery).
Updated On: Jul 24, 2026
- Pedon
- Ped
- Clod
- Micromorphology
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Soil structure refers to the arrangement of primary soil particles (sand, silt, clay) into secondary units or aggregates.
Detailed Explanation:
Let us define the terminology used for soil structural units:
- Pedon (A): The smallest three-dimensional volume of soil that can be recognized as a soil individual (used in soil classification).
- Ped (B): A naturally occurring, stable soil aggregate (such as a granule, prism, block, or plate) formed by the natural grouping of primary sand, silt, and clay particles.
- Clod (C): An artificial, irregular soil mass formed by mechanical disturbance of the soil, such as tillage or plowing.
- Micromorphology (D): The study of soil structure under a microscope.
Thus, the natural arrangement of primary particles forms a ped.
Step 2: Final Answer:
The natural aggregate formed is a Ped, which corresponds to Option (B).
Soil structure refers to the arrangement of primary soil particles (sand, silt, clay) into secondary units or aggregates.
Detailed Explanation:
Let us define the terminology used for soil structural units:
- Pedon (A): The smallest three-dimensional volume of soil that can be recognized as a soil individual (used in soil classification).
- Ped (B): A naturally occurring, stable soil aggregate (such as a granule, prism, block, or plate) formed by the natural grouping of primary sand, silt, and clay particles.
- Clod (C): An artificial, irregular soil mass formed by mechanical disturbance of the soil, such as tillage or plowing.
- Micromorphology (D): The study of soil structure under a microscope.
Thus, the natural arrangement of primary particles forms a ped.
Step 2: Final Answer:
The natural aggregate formed is a Ped, which corresponds to Option (B).
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