River Processes

Question 1

What does erosion do

Answer 1

Wears away and removes loosens material

Question 2

What is hydraulic action

Answer 2

Water sources it’s way into cracks which puts pressure on the banks and bed causing pieces to break off

Question 3

What is abrasion

Answer 3

The grinding of rock fragments

Question 4

What is attrition

Answer 4

When rocks being transported hit/smash together and break into smaller and smoother particles

Question 5

What is solution

Answer 5

Chemicals in the river dissolve minerals in the rocks, bad and banks carrying them away in solution

Question 6

What does the type of transport that can take place depends on

Answer 6

The size of the sediment and the amount of energy

Question 7

What is traction

Answer 7

The heaviest materials are rolled along the river bed
This requires the largest amount of energy

Question 8

What is saltation

Answer 8

Medium sized load is bounced along the river bed

Question 9

What is suspension

Answer 9

Small partials are carried within the water above the river bed in the turbulent flow

Question 10

What is solution

Answer 10

Rock that has been dissolved by the water are carried in solution. This requires the least amount of energy

Question 11

When can deposition occur

Answer 11

Shallow water
The volume of water is decreased
Near the mouth of the river