Waterfall

Question 1

What is a waterfall

Answer 1

A waterfall is a vertical drop in the course of the river in its youthful stage.

Question 2

Examples of waterfall

Answer 2

Torc Waterfall Co.kerry

Question 3

Waterfall formation

Answer 3

• When the river flows over an area where a band of hard rock, such as granite, lies across a band of soft rock, such as sandstone, the soft rock is eroded more quickly than the more resistant hard rock, gradually creating a vertical drop.
• The river falls over the vertical drop as a waterfall.
• This fall increases in size, and the material the river carries (its load) creates a deep pool, known as a plunge pool, at the base. This plunge pool gets bigger over time through the processes of hydraulic action and abrasion.
• The water falling into the plunge pool splashes against the back wall of the waterfall. The process of solution erodes the back wall, undercutting the waterfall and creating an overhang.
• Pressure and the force of gravity eventually cause this overhang to collapse.
• This process repeats itself over time, making the waterfall retreat upstream.

Question 4

Is a Waterfall made from deposition or erosion

Answer 4

Erosion

Question 5

Processes of river erosion

Answer 5

Hydraulic action abrasion attrition solution

Question 6

2 processes of a waterfall

Answer 6

Abrasion hydraulic action