Geography (rivers And Coast)

Question 1

Bedband/ traction mean?

Answer 1

Larger rocks and boulders are rolled or pushed along the bottom of the river channel .

Question 2

Saltation meaning

Answer 2

Smaller rocks and pebbles bounce along the bottom of the river channel

Question 3

Suspension meaning ?

Answer 3

Fine particles of sand and minerals are carried on top of the water

Question 4

Deposition meaning

Answer 4

The process in a river puts down or drops of material

Question 5

Describe the upper course of river ?

Answer 5

It begins at the source and the river is small and narrow it will erode downwards to make a v shape valley

Question 6

Describe a middle course of a river

Answer 6

It is a u shape valley because of erosion they have more water because of the tributaries it starts to erode side to side to make a meandering and it deposit in the middle

Question 7

What is the source of a river ?

Answer 7

Start of the river

Question 8

What is Drainage basin

Answer 8

Land that has been drained by a river and it’s tributaries

Question 9

What’s is a tributaries

Answer 9

A small river

Question 10

What’s is a confluence

Answer 10

When 2 rivers meet

Question 11

What is a mouth

Answer 11

End of river

Question 12

What is a water shed

Answer 12

The edge of a drainage basin

Question 13

What are the factors affecting the prices within the drainage Basin

Answer 13

Topography, soil types , bedrock type and climate

Question 14

What is erosion

Answer 14

The process in which a river wears away material from its river banks

Question 15

What is abrasion

Answer 15

Sand and stores in the river scrape the bed banks wearing them away

Question 16

Attrition meaning

Answer 16

Rocks and stores knock together and wear each other way

Question 17

Hydraulic action meaning

Answer 17

Water is forced into cracks in the bank and overtime it breaks up the bank

Question 18

Solution meaning

Answer 18

Water also dissolves soluble minerals from the bed and banks this helps to brake them up

Question 19

Describe a ox bow lake

Answer 19

An oxbow lake starts out as a curve, or meander, in a river. A lake forms as the river finds a different, shorter, course. The meander becomes an oxbow lake along the side of the river. Oxbow lakes usually form in flat, low-lying plains close to where the river empties into another body of water

Question 20

Describe lower course of river

Answer 20

The river flows slowly toward the sea level there will be more decomposition than erosion and it will be really muddy and merky in colour

Question 21

Where are deltas found

Answer 21

Found in the mouth of large rivers

Question 22

What is discharge

Answer 22

The amount of water in a river channel at a given time

Question 23

Lag time

Answer 23

The difference between the heaviest rainfall and the maximum level of discharge

Question 24

Rising limb meaning

Answer 24

Rising limb meaning a rapid increase in rain water reaching the river

Question 25

Falling limb meaning

Answer 25

Some water is reaching the river but in decreasing amounts

Question 26

What is a flood plan

Answer 26

A flat land a long side a river on the mouth it’s is prone to flooding (lower course )

Question 27

What is surface run off mean

Answer 27

The flow of water that occurs when excess storm water or other source flow over the earth surface

Question 28

Soft engineering meaning

Answer 28

Made by the natural environment

Question 29

Hard engineering meaning

Answer 29

coastal management technique used to protect coasts,by absorbing the energy of waves, preventing erosion and flooding