Erosion, Transportation And Deposition

Question 0

Hydraulic action

Answer 0

Force of water breaks rock particles away from river channel

Question 1

How many erosion processes are there?

Answer 1

4

Question 2

Corrasion

Answer 2

Eroded rocks picked up by river scrape and rub against channel, wearing it away

Question 3

Attrition

Answer 3

Eroded rocks picked up by river smash into each other, break into smaller bits. Edges get rounded off as they rub together

Question 4

Corrosion

Answer 4

River water dissolves some types of rock

Question 5

Transportation is…

Answer 5

The movement of eroded material

Question 6

What are the 4 processes of transportation?

Answer 6

Traction, saltation, suspension and solution

Question 7

What is traction?

Answer 7

Large particles (boulders) pushed along river bed by water

Question 8

What is saltation?

Answer 8

Pebble-sized particles are bounced along river bed by water

Question 9

What is suspension?

Answer 9

Small particles are carried along by water

Question 10

What is solution?

Answer 10

Soluble materials dissolved in water and are carried along

Question 11

Deposition is…

Answer 11

When a river drops eroded material

Question 12

When deposition occur?

Answer 12

When a river slows down (loses velocity)

Question 13

What are the reasons for rivers slowing down and depositing material?

Answer 13

Volume of water in river falls
Amount of eroded material in water increases
Water is shallower
River reaches its mouth