Unit 4 Earth's Processes and Resources

Front

Aquifer

Back

An underground layer of rock or sediment that holds water.

Front

Biofuel

Back

A renewable energy source made from organic materials.

Front

Canyon

Back

A deep valley with steep sides, often carved by a river.

Front

Coal

Back

A nonrenewable fossil fuel formed from ancient plant material.

Front

Conservation

Back

The protection and wise use of natural resources.

Front

Decomposition

Back

The process by which organic substances break down into simpler matter.

Front

Delta

Back

A landform at the mouth of a river created by deposition of sediment.

Front

Deposition

Back

The process by which sediment is laid down in new locations.

Front

Disposal

Back

The act of getting rid of waste or unwanted materials.

Front

Earthquake

Back

The shaking of Earth's surface caused by the movement of tectonic plates.