Geography- Waterfall Formation

Question 1

1

Answer 1

Basalt is on top of the sandstone with a small volume of water flowing over it.

Question 3

2

Answer 3

A plunge pool forms due to erosion.

Question 4

4

Answer 4

The waterfall retreat back upstream to creat a gorge.
Collapsed rocks are used as abrasive erosion tools.
The rock continues to erode.

Question 5

3

Answer 5

As the plunge pool continues to erode, an overhang is created. Eventually the overhang collapses into the plunger pool.