Erosion, Transportation And Deposition

Question 1

Hydraulic action

Answer 1

The force of water breaks rock particles away from river channel

Question 2

Abrasion

Answer 2

Eroded rocks picked up by the river scrape and run against the river channel, wearing it away.

Question 3

Attrition

Answer 3

Eroded rocks picked up by the river smash into each other and break into smaller fragments. Their edges also get rounded off as the rub together

Question 4

Solution

Answer 4

River water dissolves some types of rock e.g. chalk limestone

Question 5

Traction

Answer 5

Large particles like boulders are pushed along the river bed by the force of the water

Question 6

Saltation

Answer 6

Pebble sized particles are vouched along the river bed by the force of the water

Question 7

Suspension

Answer 7

Small particles like silt and clay are carried along by the water.

Question 8

Solution

Answer 8

Soluble materials dissolve in the water and are carried along