Question:
Which of the following statements is/are correct with reference to subsurface water?
Which of the following statements is/are correct with reference to subsurface water?
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The water table marks the boundary between saturated and unsaturated zones, and its position can influence groundwater flow and the formation of springs.
Updated On: Dec 11, 2025
- The perched water table occurs below the water table
- Vadose water occurs in the zone of aeration
- For significant groundwater underflow, the medium must be highly permeable
- Intersection of the water table with the land surface can result in the formation of a spring
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The Correct Option is B, C, D
Solution and Explanation
Step 1: Understanding Subsurface Water.
- Vadose water occurs in the zone above the water table, in the unsaturated zone or zone of aeration (B is correct).
- Groundwater underflow occurs in permeable media, such as sand and gravel, where water can move easily (C is correct).
- A perched water table is a localized water table above the regional water table, often due to an impermeable layer (A is incorrect).
- When the water table intersects the surface, it forms springs, where groundwater flows to the surface (D is correct).
Step 2: Conclusion.
The correct answer is (B), (C), and (D).
- Vadose water occurs in the zone above the water table, in the unsaturated zone or zone of aeration (B is correct).
- Groundwater underflow occurs in permeable media, such as sand and gravel, where water can move easily (C is correct).
- A perched water table is a localized water table above the regional water table, often due to an impermeable layer (A is incorrect).
- When the water table intersects the surface, it forms springs, where groundwater flows to the surface (D is correct).
Step 2: Conclusion.
The correct answer is (B), (C), and (D).
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