Rivers (3) Quiz

The term used to describe the land beside a river, which may flood when the river overflows, is called a (a)   .

• Tributary
• Floodplain
• Estuary
• Watershed

Where does a river typically widen as it flows from its source to its mouth?

• At the mouth

• In the upper course

• In the middle course

• At the confluence

The point where two rivers meet is called a _____.

Where is the mouth of a river usually located?

• In the upper course

• In the middle course

• At the watershed

• Where it flows into a lake or sea

The part of a river that flows down the steepest slope is the (a)   .

• Lower course
• Middle course
• Upper course
• Confluence

The term for smaller river that flow into a larger one is called a _____.

Match the following reasons with how they affect the width of a river as it flows towards its mouth.

• Increased volume of water in the river

• It becomes shallower

• Widening of a river channel

• Vertical erosion

• Deepening of a river channel

• Lateral erosion

• Reduced volume of water in the river

• It gains more tributaries

The term for the dividing line between one river basin and the next is called a _____.

The source of a river is (a)  

• The point where two rivers meet
• Where it overflows and floods
• Where it flows into a lake
• Where it begins, such as a melting

What does the long profile of a river represent?

• Its cross-sectional shape

• Its width at different points

• Its journey from source to mouth

• Its depth in various sections