Geography Revision 2

Question 1

What is a drainage basin?

Answer 1

The area of land drained by a river

Question 2

What is a valley?

Answer 2

An area with higher ground on either side where a river runs through

Question 3

What is a flood plain?

Answer 3

The land either side of the river which may flood if the river overflows

Question 4

What is the mouth?

Answer 4

Where the river ends and meets the sea

Question 5

What is confluence?

Answer 5

The meeting point of two rivers

Question 6

What is tributary?

Answer 6

Smaller rivers meeting a main one

Question 7

What is a water shed?

Answer 7

Imaginary outline of a river basin, an area of higher ground

Question 8

What is the source?

Answer 8

Where the river starts

Question 9

What is a river basin?

Answer 9

The area inside the water shed where all rain will collect into a river

Question 10

What are the four main forms of river erosion?

Answer 10

Hydraulic action, Abrasion, Attrition, Solution

Question 11

River erosion: Describe Hydraulic action

Answer 11

The force of the river against the banks can cause air to be trapped in cracks. The pressure weakens the banks and wears it away over time

Question 12

River erosion: Describe abrasion

Answer 12

Rocks carried along by the river rub and scrape the river bed and banks

Question 13

River erosion: Describe attrition

Answer 13

Rocks carried by the river smash together and break into smaller, smoother and rounder rocks

Question 14

River erosion: Describe solution

Answer 14

Soluble rocks are dissolved into the river

Question 15

What are the four different river transport processes?

Answer 15

Solution, Suspension, Saltation, Traction

Question 16

River transportation: Describe solution

Answer 16

Dissolved material is carried along as a solution and you can’t see it

Question 17

River transportation: Describe suspension

Answer 17

Light material is carried in the water

Question 18

River transportation: Describe Traction

Answer 18

Large rocks are rolled along the river bed

Question 19

River transportation: Describe saltation

Answer 19

Small pebbles and stones are bounced along the river bed

Question 20

What is deposition?

Answer 20

As the river reaches flatter land, it loses energy and drops or deposits its load

Question 21

What is deposited material called?

Answer 21

Sediments

Question 22

What is a river’s long profile?

Answer 22

It shows changes in the height of a river course from source to mouth

Question 23

What is cross profile?

Answer 23

It shows a cross section of a rivers channel and valley at different points on the rivers course

Question 24

What happens in the upper course of a rivers long profile?

Answer 24

-Erosion
-River has lots of energy here

Question 25

What happens in the river's middle course?

Answer 25

Both erosion and deposition

Question 26

What happens in the lower course of a river?

Answer 26

-Deposition -River loses energy

Question 27

Cross section of a river valley: What happens in the upper course?

Answer 27

-V - shaped valley -The river erodes downwards

Question 28

Cross section of a river valley: What happens in the middle course?

Answer 28

-The banks are being eroded so the channel gets wider -A flood plain forms

Question 29

Cross section of a river valley: What happens in the lower course

Answer 29

-The channel is even wider and a bit deeper -Floodplain is also wider