Erosional Processes

Question 1

what is a marine process

Answer 1

marine processes are to do with waves and processes that happen alone the coastline , for example longshore drift , erosion and deposition

Question 2

subarial processes

Answer 2

subaerial processes are ones that are ones that are land based but still alter and change the coastline shape , for example weathering and mass movement

Question 3

what part of a cliff does subaerial and marine processes affect

Answer 3

subaerial = cliff top and cliff face 
marine = cliff foot

Question 4

what is erosion

Answer 4

the wearing away and removal of material

Question 5

what is transport to do with erosion

Answer 5

the carrying of eroded particles from one location to another

Question 6

what is detachment to do with erosion

Answer 6

the separation of particles from the parent material (cliff)

Question 7

what is entrainment to do with erosion

Answer 7

the picking up of eroded particles to enable transportation to take place

Question 8

what are the 3 geomorphological processes happen at the coast

Answer 8

erosion , weathering , mass movement

Question 9

what is cavitation

Answer 9

the collapse of bubbles that have formed within moving water, releasing energy that exerts a force against rock like a hammer blow

Question 10

what is attrition

Answer 10

the erosion of material being transported by the sea , this makes the material smaller and more rounded

Question 11

what is abrasion/corrasion

Answer 11

this is the grinding away of rock or cliffs as smaller materials are transported by waves and thrown at them

Question 12

what is abrasion also known as

Answer 12

the sandpapering effect

Question 13

what is hydraulic action

Answer 13

the transportation and removal of loosened chunks of rock by waves as they retreat back into the sea

Question 14

what is the process of hydraulic action

Answer 14

when air is forced into the cracks in rocks by breaking waves which has an explosive effect and breaks the rock away

Question 15

what is wave pounding

Answer 15

the repeated force of waves breaking against cliffs , this breaks away the rock

Question 16

what is wave quarrying

Answer 16

this is where breaking waves force air into gaps into rocks , putting pressure into it which causes the rocks to be removed

Question 17

what is corrosion/solution

Answer 17

the dissolving of rock and sediment by chemicals in the sea water

Question 18

where is corrosion/solution most effective

Answer 18

in warmer water

Question 19

why does high wind speed mean that more erosion will take place

Answer 19

high wind speed will create waves with more energy , that increases erosion rates

Question 20

why does a longer fetch increase erosion

Answer 20

longer fetch means that waves have a longer distance to gain more energy , waves with more energy erode more

Question 21

what is an example of a hard/resistant rock

Answer 21

granite

Question 22

what is an example of soft/ less resistant rock

Answer 22

clay

Question 23

what are 3 things that suggest why some erosional processes are more and less effective than others

Answer 23

fetch , wind speed , geology

Question 24

what type of erosion doesn’t directly affect a cliff

Answer 24

attrition