geography 0.0 / 5 ? Geographywalton on the mazeGCSEOCR Created by: scarlett.rvCreated on: 05-10-17 20:35 what normally causes Longshore Drift The prevailing wind (the direction the wind ususally blows from) causes waves to approach the coast at an angle. 1 of 5 what is the swash The swash carries the sand and pebbles up the beach at the same angle (usually 45º). 2 of 5 what is backwash The backwash, however carries the material back down the beach at right angles (90°) as this is the steepest gradient. 3 of 5 gryones are placed to help stop Longshore Drift remove the sediment so the beach is kept 4 of 5 cliffs the cliffs are unstable and slumping 5 of 5
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