Rivers Flashcards
1
Q
What land from are found in the upper course of the river
A
Waterfalls
2
Q
How is a waterfall formed
A
Notch is formed by erosion which forms a notch in the river bed
Due to vertical erosion (hydraulic action) a plunge pool is formed
Through further erosion the waterfall is undercut and forms an overhang
When it is too heavy it collapses and the waterfall retreats eventually leaving a gorge
3
Q
How is a meander formed
A
It is a depositional and erosional landform
On the outside of the river water flows fastest and hydraulic action and bends due to more friction
This is undercut forming a river cliff
On the inside water doesn’t have as much energy and due to this sediment is deposited on the inside forming a slip off slope
