Land and Water

Front

What is a watershed?

Back

A watershed is an area of land drained by a set of tributaries and a main river.

Front

Which of the following is not a source of drinking water?

Back

Ocean.

Front

What is the end of a river where it flows into another body of water called?

Back

Mouth.

Front

Under what conditions can water cause the most erosion?

Back

Fast moving water on a steep slope.

Front

What happens when you sprinkle your watershed with water very hard and fast?

Back

It causes hard rain and a lot of erosion.

Front

What is the definition of erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water.

Front

What is a river?

Back

A river is a large natural stream of water that flows across the land and usually empties into a sea or ocean.

Front

What are tributaries?

Back

Tributaries are smaller rivers or streams that flow into a larger river.

Front

What is the difference between a lake and an ocean?

Back

A lake is a large body of freshwater surrounded by land, while an ocean is a vast body of saltwater that covers most of the Earth's surface.

Front

What is the role of vegetation in a watershed?

Back

Vegetation helps to absorb water, reduce erosion, and filter pollutants.