KL waterfalls college

What is river erosion

• The river bed and banks being worn away

• The river carrying away its eroded materials ( Load )

• The river dropping its eroded materials ( Load )

Deposition is the process where a river ….

• Plucks rocks from the river bed

• Wears away the river banks and bed

• Drops it’s eroded materials ( Load )

• Carries away it’s eroded material ( Load )

What is the process called where the river carries it's material it has eroded

• Erosion

• Transportation

• Deposition

• Hydraulic Action

At what stage in a river does a waterfall form

• The Youthful Stage

• The Mature Stage

• The Old Age Stage

Which of the following would best describe a waterfall?

• A horseshoe shaped lake

• The winds and bends in a river

• A build up of alluvium on the

  banks of a river

• A vertical drop in the course of a river

A pool at the base of a waterfall is known as...?

• A Swimming Pool

• A Plunge Pool

• A Whirlpool

• A Deep Pool

What forms at the top of a waterfall over time?

• An Overhang

• A Plunge Pool

• A V Shaped Valley

Two types of erosion take place to form a waterfall would be ….

• Solution and Saltation

• Hydraulic action and suspension

• Hydraulic Action and Abrasion

• Attrition and Traction

Overtime due to gravity and pressure an overhang will eventually collapse, True or

False ?

• True

• False

As the overhang collapses over time, the river moves further and further upstream. This causes the waterfall to ......

• Deepen

• Advance

• Disappear

• Retreat