Front

What percentage of Earth's water is found in oceans?

Back

97%

Front

What factor has the greatest effect on a community’s stores of fresh water?

Back

The average annual rainfall.

Front

What is the term for water that runs off into channels and keeps moving until it ends up in the ocean?

Back

River.

Front

Where does most fresh water exist?

Back

Aquifers, ice caps, and glaciers.

Front

What best describes the characteristics of a river basin?

Back

The land drained by a river and its tributaries.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is precipitation?

Back

Water that falls to the Earth's surface in the form of rain, snow, sleet, or hail.

Front

What is an aquifer?

Back

A geological formation that can store and transmit water.

Front

What is the difference between a river and a stream?

Back

A river is larger and flows into a larger body of water, while a stream is smaller and may flow into a river.

Front

What is runoff?

Back

Water that flows over the ground surface and returns to bodies of water.