Waves 0.0 / 5 ? GeographyCoastal zonesGCSEEdexcel Created by: Carys ReesCreated on: 12-02-18 12:36 Fetch The distance over which the wind has blown 1 of 19 Swash The transfer of a waves energy down the beach 2 of 19 Backwash The transfer of a waves energy down the beach 3 of 19 Constructive A wave that has a greater swash than backwash 4 of 19 Destructive A wave that has a greater backwash than swash 5 of 19 Wave The movement of the wind across the surface of the sea 6 of 19 Sub-aerial process Acting on the Earth's surface, including weathering and mass movement 7 of 19 Biological weathering The process of rocks being broken down by living things 8 of 19 Chemical weathering When rain falls on rocks such as limestone, a chemical reaction takes place. It makes the rock weak and break down when it is dissolved 9 of 19 Mechanical weathering In the cold, rainfall gets in the cracks and it expands by 10% when it is frozen 10 of 19 Rock falls Breaking and tumbling 11 of 19 Slumping Cliff face slumps down 12 of 19 Sliding Small amount of sliding 13 of 19 Mass movement The movement of material down a slope due to gravity 14 of 19 Weathering The breakdown and decay of rock by natural processes acting on rocks, cliffs and valley sides 15 of 19 Hold the line Use sea defences to stop erosion, and so the coast stays where it is today 16 of 19 Advance the line Use sea defences to move the coast further into the sea 17 of 19 Strategic realignment/ strategic retreat Gradually let the coast erode, and move people and businesses away from the areas of risk. Many involve compensation 18 of 19 Do nothing Let nature take its course 19 of 19
Comments
No comments have yet been made