Question

Match List I with List II
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Choose the correct answer from the options given below:

• A. A - V, B - III, C - IV, D - I, E - II
• B. A - V, B - I, C - III, D - IV, E - II
• C. A - I, B - V, C - III, D - II, E - IV
• D. A - V, B - III, C - I, D - IV, E - II

Hint:

Remember the texture-porosity rule:
Increasing clay content \(\rightarrow\) Increases total porosity \(\rightarrow\) Increases water content at saturation.
Matching Sand with the lowest value (38%) and Clay Loam with the highest value (50%) helps you identify the correct option.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The moisture content of soil at the saturation level is directly related to its total porosity.
Porosity is determined by soil texture: fine-textured soils (containing more clay) have higher total porosity and can hold more water at saturation compared to coarse-textured soils (containing more sand).

Step 2: Detailed Explanation:
Let us arrange the soil textures in order of increasing clay content (which corresponds to increasing porosity and saturation moisture content):
Sand (A): Coarsest texture, lowest porosity. It has the lowest moisture content at saturation: V (38%).
Loamy sand (D): Slightly finer than sand, but still very coarse: IV (40%).
Sandy loam (C): Contains more silt and clay than loamy sand: III (42%).
Silt loam (B): Fine-textured soil with high silt content and high porosity: I (45%).
Clay loam (E): Finest texture among the options, highest clay content and highest porosity: II (50%).
This gives us a consistent, ascending relationship:
- Sand: 38%
- Loamy sand: 40%
- Sandy loam: 42%
- Silt loam: 45%
- Clay loam: 50%
The correct matching sequence is: A-V, B-I, C-III, D-IV, E-II.

Step 3: Final Answer:
The correct option is (B).