Freshwater Review

Front

What does it mean if a material is permeable?

Back

A permeable material allows water to pass through it.

Front

What percentage of Earth's water is saltwater?

Back

Approximately 97% of Earth's water is saltwater.

Front

What is a tributary?

Back

A tributary is a stream that flows into a larger river.

Front

What is groundwater?

Back

Groundwater is the water found in cracks and pores in sand, gravel, and rocks below the earth’s surface.

Front

How many river basins are there in North Carolina?

Back

There are 17 river basins in North Carolina.

Front

What is the term for the area of land where all the water drains into a common body of water?

Back

Watershed.

Front

What is the difference between runoff and infiltration?

Back

Runoff is water that flows over the ground surface, while infiltration is the process of water soaking into the ground.

Front

What is an estuary?

Back

An estuary is a coastal area where freshwater from rivers meets and mixes with saltwater from the ocean.

Front

Define porosity.

Back

Porosity is the measure of how much empty space is in a material, which can hold water.

Front

What is the water cycle?

Back

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