sources of coastal sediment

Question 1

aeolian deposition

Answer 1

WIND-when winds are stronger than 40km/h the sand will start to roll across the surface, meaning deposition will occur

Question 2

Marine erosion

Answer 2

EROSION THAT TAKES PLACE BY THE SEA
when the waves shape the landscapes by erosional processes

Question 3

Hydraulic action

Answer 3

water + air that is forced into cracks and then breaks apart

Question 4

Pounding

Answer 4

masses of breaking waves creates pressure onto the rocks which weakens it

Question 5

Abrasion

Answer 5

the waves hurl the rocks that are contained within the wave at the cliffs and wears away rock- like sandpaper

Question 6

Attrition

Answer 6

rocks that crash into each other and break into smaller pieces of rock

Question 7

Freeze thaw weathering

Answer 7

rainwater enters cracks in the rocks, freezes and then rock expands by 10% and breaks apart.

Question 8

Biological weathering

Answer 8

tree roots break apart the rocks

Question 9

mass movement

Answer 9

forces acting on the slope moving sediment down onto the coast below

Question 10

terrestrial

Answer 10

FROM LAND
rivers pick up sediment through erosion, weathering and mass movement.
When freshwater meets salty water FLOCCULATION happens (when clay particles clump together and become heavy and then sink)