Question:
Arrange these soil textural classes in descending order with respect to water permeability in root zone. A. Loam, B. Sandy loam, C. Clayey, D. Fine sandy, E. Gravelly.
Arrange these soil textural classes in descending order with respect to water permeability in root zone. A. Loam, B. Sandy loam, C. Clayey, D. Fine sandy, E. Gravelly.
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Permeability is highest in coarse-textured soils and lowest in clayey soils.
Updated On: May 18, 2026
- B \(>\) C \(>\) E \(>\) D \(>\) A
- E \(>\) D \(>\) B \(>\) A \(>\) C
- A \(>\) B \(>\) C \(>\) D \(>\) E
- E \(>\) A \(>\) B \(>\) C \(>\) D
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The Correct Option is B
Solution and Explanation
Concept:
Water permeability is higher in coarse-textured soils because they contain larger pores. It is lower in clayey soils because clay has very small pores.
Step 1: Highest permeability.
Gravelly soil has the largest pore spaces. \[ \text{Highest permeability}=E \]
Step 2: Next soils.
Fine sandy soil and sandy loam have more sand particles, so they have higher permeability than loam and clayey soil. \[ D>B>A>C \]
Step 3: Lowest permeability.
Clayey soil has the lowest permeability. \[ \text{Lowest}=C \]
Step 4: Final descending order. \[ E>D>B>A>C \] \[ \therefore \text{Correct Answer is (B)} \]
Water permeability is higher in coarse-textured soils because they contain larger pores. It is lower in clayey soils because clay has very small pores.
Step 1: Highest permeability.
Gravelly soil has the largest pore spaces. \[ \text{Highest permeability}=E \]
Step 2: Next soils.
Fine sandy soil and sandy loam have more sand particles, so they have higher permeability than loam and clayey soil. \[ D>B>A>C \]
Step 3: Lowest permeability.
Clayey soil has the lowest permeability. \[ \text{Lowest}=C \]
Step 4: Final descending order. \[ E>D>B>A>C \] \[ \therefore \text{Correct Answer is (B)} \]
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