River Features - Upper Course

Question 1

Why do rivers in upper courses erode more?

Answer 1

They flow faster on steep land, carrying larger loads like boulders.

Question 2

What landforms form from vertical erosion?

Answer 2

Deep valleys with steep sides.

Question 3

What are rapids?

Answer 3

A fast-flowing, rocky section of a river without a sudden drop.

Question 3

What is a waterfall?

Answer 3

A sudden drop in a river’s gradient.

Question 4

How do canyons form?

Answer 4

Rivers with faster flow and stronger vertical erosion cut wider, deeper valleys.

Question 5

How are gorges formed?

Answer 5

Waterfalls retreat upstream by erosion, cutting deep valleys.