coasts
- Created by: brownlindsey
- Created on: 08-03-18 14:26
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Clues
- as waves recede the compressed air expands violently again exerting pressure on the rock and causing pieces to break off (10, 7)
- bits of rock and sediment transported by the waves smash and grind against rocks and cliffs breaking bits off and smoothing surfaces (9, 7)
- bits of rock in the water smash against each other and break into smaller bits (9, 7)
- gradual break down of rock by agents such as ice salt plat rotts and acids (3, 6, 10)
- high and steep more circular cross profile have higher frequency about 10-14 waves a minute the strong backwash removes material from beach (11, 5)
- low frequency around 6-8 waves per minute low and long more eleptical cross profile the powerful swash carries material up the beach and deposits it (12, 5)
- sediment can be washed out to sea or deposited further along the coast (7, 2, 6)
- sediment is brought into the system. energy inputs come from wind, waves, tides and currents (6, 2, 6)
- the process of eroded material being moved (14)
- when change causes other changes that have the opposite effect eg a beach is eroded the cliffs behind it are exposed to wave attack. sediment eroded from the cliffs is disposed on the beach causing it to grow in size again (8, 8, 2)
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