Question

Match List-I with List-II. List-I Soil Property: A. Porosity, B. Potential flow, C. Soil moisture tension, D. Water balance. List-II Detail/Process: I. The ratio of volume of pores to the total soil volume, II. The irrotational and steady flow, III. The tenacity of soil by which water is retained in it, IV. Hydrological balance between rainfall and irrigation that change the soil moisture.

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

Hint:

Porosity means pore volume divided by total soil volume.

Answer 1

The Correct Option is A

Concept:
Soil physical properties and hydrological terms describe pore space, flow, water retention and water balance.

Step 1: Porosity.
Porosity is the ratio of volume of pores to the total soil volume. \[ A\rightarrow I \]

Step 2: Potential flow.
Potential flow is generally considered irrotational and steady flow. \[ B\rightarrow II \]

Step 3: Soil moisture tension.
Soil moisture tension is the force or tenacity with which soil retains water. \[ C\rightarrow III \]

Step 4: Water balance.
Water balance represents the hydrological balance between rainfall, irrigation and changes in soil moisture. \[ D\rightarrow IV \] Therefore: \[ A-I,\ B-II,\ C-III,\ D-IV \] \[ \therefore \text{Correct Answer is (A)} \]