Upper Course Rivers

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

• Hard
• Soft

Where would you find a waterfall?

• Upper course
• Middle Course
• Lower Course

Where would you find a waterfall?

• Upper course
• Middle Course
• Lower Course

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

Which erosional landform creates land which links together like zipper teeth?

• Levees

• Meanders

• Interlocking spurs

• waterfalls waterfalls

What type of erosion forms a gorge?

• Vertical

• Lateral

• Headward

• none of the above none of the above

In the Upper course of the river, what is the shape of the river channel?

• Wide U shaped

• Uneven

• Wide asymmetrical U shaped

• Steep sided V shaped

The term “traction” refers to the way in which materials in the river’s load are bounced along the riverbed.

• True

• False