Big Test 3

Question 1

Geomorphic processes

Answer 1

Ways in which the land can be shaped.

Question 2

Erosion

Answer 2

The process of wearing down rocks in a river.

Question 3

Hydraulic action

Answer 3

Air and water is forced into cracks in the river bed and banks which cause them to break apart and wear away.

Question 4

Abrasion

Answer 4

Rocks being carried along the river wear down the bed and banks like sandpaper

Question 5

Attrition

Answer 5

Rocks in the river are smashed together and break into smaller, rounder and smoother particles.

Question 6

Solution

Answer 6

Dissolvable particles are dissolved into a river

Question 7

Transportation

Answer 7

The movement of rocks along the river floor.

Question 8

Traction

Answer 8

Boulders and rocks are rolled along the river bed

Question 9

Saltation

Answer 9

Small pebbles and stones are bounced along the river bed

Question 10

Suspension

Answer 10

Fine, light material is carried along the river

Question 11

Solution

Answer 11

Minerals are dissolved in the water and carried along in the river

Question 12

Deposition

Answer 12

When the river loses energy, it drops the material it has been carrying.

Question 13

Physical causes of flooding

Answer 13

Cyclones from the Bay of Bengal
Snow melt - increases the amount of water going into the rivers

Question 14

Human causes of flooding

Answer 14

Deforestation - reduces the amount of water taken up from tree roots
Increasing urban areas - creates more impermeable surfaces