Upper Course River Features

Waterfalls often form in the upper stages of a river where it flows over different bands of rock. What type of rock dose it erod

• Hard
• Soft

The long profile of a river is divided into 3 parts: the upper course, the middle course and the lower course.

• True
• False

As a waterfall retreats upstream, it creates a feature called:

• gorge

• v shaped valley

• interlocking spur

• river cliff

What types of erosion cause the undercutting of a waterfall?

• Abrasion and hydraulic action

• Abrasion and attrition

• Attrition and hydraulic action

• Corrosion and Attrition Corrosion and Attrition

The _________ is an area of land that separates water flowing into different drainage basins.

• Watershed

• Source

• Confluence

• Tributary

The valley walls of a river are the steepest at which river course?

• Upper

• Middle

• Lower

What are the three processes that occur as a river flows from its source to the mouth?

• erosion, attrition and abrasion

• erosion, transportation and deposition

• erosion, transportation and solution

• erosion, attrition and corrosion

Where does deposition mostly occur?

• Upper Course

• Middle Course

• Lower Course

Where does erosion mostly occur?

• Upper Course

• Middle Course

• Lower Course

A waterfall is most likely to be found closer to what part of the river?

• River mouth
• River source