The upper boundary of an underground zone of saturated water is called ________.

Question

Quizplus · Accepted Answer

The upper boundary of an underground zone of saturated water is called the water table. Choice A (aquifer) refers to the permeable rock or sediment that holds groundwater. Choice B (subterranean surface) is too vague and could refer to any layer beneath the Earth's surface. Choice C (surface recharge) refers to the process of water soaking into the ground to replenish the groundwater supply, not the upper boundary of the zone itself.

The Upper Boundary of an Underground Zone of Saturated Water