marine erosion

Question 1

what are the two types of waves?

Answer 1

constructive and destructive

Question 2

what are destructive waves?

Answer 2

created in storm conditions waves are high and dangerous

Question 3

what are constructive waves?

Answer 3

low waves created in normal conditions l

Question 4

what are erosional processes influenced by?

Answer 4

wave type
size (wave)
lithology

Question 5

what is hydraulic action?

Answer 5

waves crash rocks and compress air in cracks, repeated compression widens cracks causing rock to shatter

Question 6

what is corrosion?

Answer 6

water dissolves minerals from the rocks and washes it away

Question 7

what is abrasion?

Answer 7

sediment scrapes against the rocks removing small pieces

Question 8

what is attrition?

Answer 8

sediment collided with each other and break into smaller fragments causing their edges to become rounded

Question 9

what is a wave cut notch?

Answer 9

erosion occurs at foot of cliff creating a gap within the structure

Question 10

what is a wave cut platform?

Answer 10

narrow base left behind as cliff retreats

Question 11

what causes the cave-arch-stack-stump sequence?

Answer 11

hydraulic action and abrasion to the cliff