What processes are associated with rivers?

Question 1

What is Erosion?

Answer 1

Is the wearing away of land.

Question 2

What are the four types of Erosion?

Answer 2

• Abrasion
• Hydraulic action
• Solution
• Attrition

Question 3

What is Abrasion?

Answer 3

Stones carried along the river and washed into bed & banks, wearing them away

Question 4

What is Hydraulic Action?

Answer 4

The sheer force of flowing water wash away any loose material on the bed and banks

Question 5

What is Solution?

Answer 5

Slightly acidic river water dissolve rock made of calcium carbonate

Question 6

What is Attrition?

Answer 6

Stones collide together and are broken down becoming smaller & rounder

Question 7

What is Transportation?

Answer 7

Carried along river which is called its load

Question 8

What are the four types of Transportation?

Answer 8

• Traction
• Suspension
• Saltation
• Solution

Question 9

What is Traction?

Answer 9

Stones are rolled along the river bed by the force of water

Question 10

What is Suspension?

Answer 10

Particles of clay are carried along in the flowing water

Question 11

What is Saltation?

Answer 11

Small stones are bounced along the river bed by flowing water

Question 12

What is Solution?

Answer 12

Some minerals dissolve in water. Limestone slowly dissolves

Question 13

What is Deposition?

Answer 13

River slows down therefore has less energy to carry its load. Some of the material will de dropped (deposited)

Question 14

What is a drainage basin?

Answer 14

An area of land drained by a river & its tributaries