Exploring Rivers and Their Features

What is the source of a river?

• The point where the river meets the sea

• The point where the river begins

• The point where two rivers meet

• The point where the river flows the fastest

What is the mouth of a river?

• The point where the river begins

• The point where the river meets the sea or a lake

• The point where two rivers meet

• The point where the river flows the fastest

Which of the following is a process of river erosion?

• Deposition

• Transportation

• Abrasion

• Evaporation

What is hydraulic action in the context of river erosion?

• The river carrying sediment downstream

• The force of water breaking rock particles away from the river bed and banks

• The river depositing sediment

• The river freezing and thawing

How is a waterfall formed?

• By the river flowing over a hard rock layer followed by a softer rock layer

• By the river flowing over a flat plain

• By the river flowing through a desert

• By the river flowing into a lake

What is a plunge pool?

• A pool at the source of a river

• A deep pool at the base of a waterfall

• A pool at the mouth of a river

• A pool formed by a meander

What is a meander?

• A straight section of a river

• A bend or curve in a river

• A waterfall

• A confluence

What is a tributary?

• A river that flows into another river

• A river that flows into the sea

• A river that flows into a lake

• A river that flows into a waterfall

What is a confluence?

• The point where a river meets the sea

• The point where two rivers meet

• The point where a river begins

• The point where a river ends

What is the process called when rocks and stones carried by the river knock against each other and break into smaller pieces?

• Solution

• Attrition

• Abrasion

• Deposition