Question

The underground water that occurs within the zone of aeration is known as:

• A. Vadose water
• B. Connate water
• C. Meteoric water
• D. Plutonic water

Hint:

Vadose water occurs above the water table in the zone of aeration.

Answer 1

The Correct Option is A

Concept:
Groundwater is classified according to its position below the ground surface and its origin.

Step 1: Understand zone of aeration.
The zone of aeration lies above the water table. In this zone, pores contain both air and water.

Step 2: Identify water in zone of aeration.
Water present in the zone of aeration is called vadose water. \[ \text{Zone of aeration water}=\text{Vadose water} \]

Step 3: Eliminate other options.
Connate water is trapped in sediments during deposition.
Meteoric water is derived from precipitation.
Plutonic water is associated with deep-seated magmatic sources. \[ \therefore \text{Correct Answer is (A)} \]