Substance that doesn't allow water to pass through
Substance that does allow water to pass through
Substance that solids can pass through but not liquids
Substance that solids and liquids can't pass through
It supplies Aquafina with water.
It supplies the water for the ocean.
An aquifer acts as a filter and helps purify the water.
An aquifer holds the water in place underground, so the water doesn't move.
The amount of precipitation
The amount of people pulling water from underground
People using groundwater to water lawns and plants.
All of the above