Its cool I guess
Confined aquifers are not on the surface.
Unconfined aquifers are still under the surface but still has parts on the surface.
Porosity VS. permeability
Porosity and permeability are ways to measure to measure how much space between rocks the more space the easier it is for water to go through. If it has a lot of porosity it can hold more water so those types of materials are better for ground water.
The water cycle
A aquiclude is soil rock or sediment that water can't go through. It can separate different aquifers and other things.
Things ground water depltion can cause
- Earthquakes from rapid water depletion
- Ground subsidence
- Loss of water supply