Question

Given below are two statements
Statement I: Saturated hydraulic conductivity is less but unsaturated hydraulic conductivity is more in sandy soil.
Statement II: Infiltration is not affected by soil surface condition but depends upon the transmission characteristics of entire soil profile.
In light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are correct
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Hint:

Hydraulic conductivity:
- Sandy soil: High saturated K, low unsaturated K.
- Clay soil: Low saturated K, high unsaturated K.
Infiltration affected by: Soil surface condition, texture, structure, moisture content.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
This question tests knowledge of soil hydraulic properties and infiltration.

Step 2: Detailed Explanation:
Statement I:
In sandy soils, saturated hydraulic conductivity is higher (not less) due to large pores.
Unsaturated hydraulic conductivity is lower (not more) in sandy soils due to lack of fine pores.
The statement is reversed and incorrect.
This statement is false.
Statement II:
Infiltration is affected by soil surface conditions.
Surface conditions (crusting, compaction, vegetation) significantly affect infiltration.
Infiltration also depends on transmission characteristics of the soil profile.
The statement says "not affected by soil surface condition" which is incorrect.
This statement is false.

Step 3: Final Answer:
Thus, both statements are incorrect.
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