The total amount of water on Earth

The land area that supplies water to a river system is called a

Materials that allow water to easily pass through them are

Groundwater is found

Material that has many spaces or holes

People can obtain groundwater by drilling a well

More than 2/3 of Earth's water is found in

One process that can be used (but is very expensive at this time) to remove salt from salt water is called___

____ is water that flows across land and collects in rivers, in streams, and eventually in the ocean.

The area of land where NEW water enters an aquifer

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