Coasts 2.0 / 5 based on 1 rating ? GeographyCoastal zonesGCSEOCR Created by: HatterCreated on: 03-06-13 14:13 What is the diagonal movement of material across the beach? Longshore drift 1 of 5 what is oxidation? It is where oxygen reacts with iron deposits in the cliff and turns it rusty. 2 of 5 What Coastal defence method can be used to prevent longshore drift? Groynes 3 of 5 What method is used to determine the type of defence used? Cost benefit ratio or rate of erosion 4 of 5 What is hydraulic action? It is where air is forced into the weaknessess and erodes and makes them bigger making them more susceptible to other types of erosion. 5 of 5
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