marine processes - erosion

Question 1

corrasion

Answer 1

sand and pebbles are picked up by the sea from an offshore sediment sink or temporal store and hurled against the cliffs at high tide

Question 2

abrasion

Answer 2

sediment is moved along the shoreline, casusing it to be worn down over time

Question 3

hydraulic action

Answer 3

as a wave crashes onto a rock or cliff face, air is forced into the cracks, and the high pressure causes the cracks to force apart

Question 4

corrosion (solution)

Answer 4

the mildly acidic seawater can cause alkaline such as limestone to be eroded

Question 5

wave quarrying

Answer 5

this is when breaking waves hit the cliff face to directly pull away rocks from a cliff face or remove smaller weathered fragments

Question 6

cavitation - from hydraulic action

Answer 6

Bubbles found within the water may implode under high pressure creating tiny jets of water that over time erode the rock - cavitation

Question 7

what factors affect erosion - marine or land

Answer 7

waves, beach size and presence, activity of subarea processes, rock faults, rock lithology