Coast Revision

Question 1

What is the meaning of transportation ?

Answer 1

Carrying away of eroded materials by rivers , waves , the wind or glaciers

Question 2

What is the meaning of abrasion ?

Answer 2

loose rocks are thrown against the cliff wearing seat st the rock like sandpaper

Question 3

What is the meaning of Erosion ?

Answer 3

Wearing away of rocks , stones and soil by river , waves , the wind or glaciers

Question 4

What is the meaning of Suspension ?

Answer 4

Fine sediment is carried along in suspension in the water

Question 5

How is a stump formed

Answer 5

1. ) large crack opened up by hydraulic action
2. ) the crack grows into a cave by hydraulic action and abrasion
3. ) the cave becomes larger
4. ) the cave breaks through the headland forming a natural arch
5. ) the arch is eroded and collapses
6. ) this leaves a tall rock stack
7. ) the stack is eroded forming a STUMP

Question 6

What is the meaning of solution

Answer 6

Dissolved material is carried alone in solution - you can’t see it

Question 7

What is the meaning of saltation ?

Answer 7

Small pebbles are moved when one pebble hits another causing it to bounce

Question 8

What is longshore drift ?

Answer 8

This is when sediment is being transported along the beach in a zig zag route

Question 9

State causes as to why the holdernees cost is being eroded rapidly

Answer 9

• powerful destructive waves caused by strong wind and long fetch
• cliffs made of soft boulder clay
• sea defences along the coast have made the problem worse in some areas
• eroded material is transported out to sea meaning the beaches are small

Question 10

What happens during longhairs drift ?

Answer 10

The wind blows towards the land at an angle . It then causes the waves to approach the beach a slight angle . As they break , the swash carries material up the beach at an angle . Gravity causes the material to be carried straight down the beach

Question 11

What are the different aspects of destructive waves ?

Answer 11

• They have a weak swash and strong backwash - pulls the sand and pebbles off the beach
• steep , high waves that are close together
• come into the coast quickly
• create a steep beach

Question 12

What are the aspects of constructive waves ?

Answer 12

• They have a strong swash and weak backwash - build up the beach
• low waves , more gently sloping with longer gap between them
• gentle beach

Question 13

What are the four types of Erosion ?

Answer 13

• hydraulic action
• attrition
• abrasion
• solution

Question 14

What is the meaning of solution ?

Answer 14

sea water dissolves material from rocks

Question 15

What are the four types of Transportation?

Answer 15

• Suspension
• Solution
• traction
• saltation

Question 16

What are the two different types of waves ?

Answer 16

• Destructive waves

* Constructive waves

Question 17

What is the meaning of attrition ?

Answer 17

Loose rocks are swirled around and around and worn in smaller and rounder pieces

Question 18

What is the meaning of Hydraulic Action ?

Answer 18

this is when water is forced into the cracks of the rocks , is compressed and forced the rock apart

Question 19

State some effects of the holderness coast being eroded

Answer 19

• buildings close to the cliff face have a very high chance of falling into the sea(people will not be compensated for this)
• loss of diversity in wildlife due to lack of sediment
• protecting the coastline is costly (people disagree)
• was ignition had terminal is close to the sea this supplied the country with energy
• businesses at risk will loose money