Rivers + Coasts Revision 2.0 / 5 based on 1 rating ? GeographyWater and riversGCSEOCR Created by: ThéaCreated on: 11-06-13 18:45 What is Hydraulic Action at Coasts? When waves crash against rocks and compress the air in the cracks, putting pressure on the rocks 1 of 9 What is corrosion at coasts? When slat and other things dissolved in the sea water corrode the rocks, making them weaker 2 of 9 What are Destructive waves like? They occur when there is a steep gradient. They are large in height / have lots of energy / have a weak swash and strong backwash 3 of 9 What are Constructive waves like? They occur at a shallow gradient. They are small in height / have less energy / have a strong swash and weak backwash 4 of 9 What is Longshore Drift? When waves coming into the beach from an angle, due to the direction of the prevailing wind, move material along a beach and coastline 5 of 9 What is a bar? A beach/***** of land which has been formed by deposition and joins two headlands together, with a lagoon behind it 6 of 9 What is a spit? Spits are bands of sand or deposited materials which forms at a sharp bend on a coastline 7 of 9 How are Bars and Spits formed? By longshore drift 8 of 9 What is a tombolo? A bar that connects the shore to an island 9 of 9
Comments
No comments have yet been made