Coasts

Question 1

Give three examples of sedimentary rock

Answer 1

Clay, chalk, sandstone

Question 2

Which section of the English coastline in mot resistant to erosion?

Answer 2

South-west England

Question 3

Identify 3x factors that influence the rates of coastal recession?

Answer 3

human interference, geology, lithology

Question 4

What is the difference between concordant and discordant coastlines?

Answer 4

Concordant are layers of the same rock which run parallel to the coast. Discordant is alternating layers of rock that run at a right angle to the coast.

Question 5

True of False? Submergent coastlines are created by rising sea level

Answer 5

True

Question 6

Identify one way in which vegetation stabilises sediment

Answer 6

Long roots bind the sediment making it harder to erode

Question 7

What is a ‘halophyte’?

Answer 7

A plant that can tolerate salt water

Question 8

Give an example of a pioneer species in sand dune succession

Answer 8

Marram grass

Question 9

Describe the geological structure of the UK.

Answer 9

Igneous + Metamorphic = N Ireland + Scotland Sedimentary = England

Question 10

Give x3 examples of erosional landforms

Answer 10

headlands and bays, cliffs and shoreline platforms

Question 11

Which process transports sediment along the coast in a zig-zag pattern?

Answer 11

Longshore drift

Question 12

Identify x2 reasons why deposition occurs along the coast.

Answer 12

Water shows down, change in shape of coastline.

Question 13

Give x3 examples of depositional landforms.

Answer 13

Spit , tombolo, offshore bars.

Question 14

Give x1 example of weathering and x1 example of mass movement.

Answer 14

mechanical (freeze thaw) , stumps

Question 15

What is the difference between isostatic and eustatic sea level change?

Answer 15

isostatic = land rises / falls = local = long time
eustatic = sea lerel rises/ falls = global = short time

Question 16

What are x2 causes of isostatic sea level change?

Answer 16

Land sinks due to deposition of sediment.
As ice melts, weight is decreased causing land to rise

Question 17

What are x2 causes of eustatic sea level change?

Answer 17

Thermal expansion
Water evaporates and is stored as ice.

Question 18

Give x2 examples of emergent coastline landforms

Answer 18

fossil cliffs and raised beaches

Question 19

Give x2 examples of submergent coastline landforms.

Answer 19

fjords and rio’s

Question 20

What is your coastal recession case study?

Answer 20

Holderness

Question 21

What are your coastal flooding case studies?

Answer 21

Bangladesh , Sri Lanka , Maldives and Florida

Question 22

What local factors can influence flood risk on some coastlines?

Answer 22

Low lying, removing vegetation and subsidence

Question 23

What is carried out before deciding whether a section of coastline should be protected or not?

Answer 23

Cost benefit analysis

Question 24

Identify x3 hard engineering strategies

Answer 24

groynes, sea wall, rip rap

Question 25

Identify x3 soft engineering strategies

Answer 25

Beach nourishment, cliff regrading, dune stabilisation

Question 26

Give x2 sustainable coastline management strategies (SCMS)

Answer 26

Educating communities, monitoring coastal change

Question 27

Give an example of how conflict can occur following on from the implementation of SCMS

Answer 27

People lose vital sources of income

Question 28

Explain how vulnerable communities in the Maldives are being better supported?

Answer 28

Mangroves for the Future