Question:medium

Given below are two statements:
Statement (I): Soil profile is a vertical section of the soil from the surface through all its horizons.
Statement (II): Soil texture is the arrangement of individual soil particles with respect to each other into a pattern.

In light of the above statements, choose the most appropriate answer from the options given below.

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Keep this distinct in mind:
- Texture: % Sand, Silt, and Clay (cannot be changed easily).
- Structure: Arrangement/Pattern of particles (can be altered by tillage).
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Show Solution

The Correct Option is C

Solution and Explanation

Step 1: Confirm Statement I against the standard definition of a soil profile.
A soil profile is the vertical section exposed when you dig down from the ground surface through the various layers, or horizons, of a soil, down to the parent material. This matches Statement I word for word, so Statement I is correct.
Step 2: Check what Statement II is actually describing.
Statement II defines the property in question as the arrangement of individual soil particles with respect to each other into a pattern. That description, the arrangement or aggregation of particles into peds or clusters, is the textbook definition of soil structure, not soil texture.
Step 3: State what soil texture actually means, to see the mismatch clearly.
Soil texture is instead defined by the relative proportions of sand, silt and clay sized particles present in the soil, a compositional property, not an arrangement or pattern property. Since Statement II has attached the structure definition to the word texture, it is factually incorrect as written.
Step 4: Combine the two findings.
Statement I is accurate and Statement II is a mislabelled definition, so the correct combination is that the first statement holds and the second does not.
\[ \boxed{Statement (I) is correct but Statement (II) is incorrect.} \]
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