What is the term for rock layers where underground reserves of water are found?

Question

Quizplus · Accepted Answer

Aquifers are rock layers where underground reserves of water are found.
Key Takeaway: An aquifer is a layer of permeable rock or surface materials (like clay, sand, gravel, or silt) underground, through which water can filter and flow. This water then can be extracted for cities and communities with a water well. The surface of material in an aquifer is known as the water table.

What Is the Term for Rock Layers Where Underground Reserves