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geography assessment - Coggle Diagram
geography assessment
hydraulic action, abrasion, attrition and solution erode the coast
hydraulic action
is the erosion that occurs when the motion of water against a rock surface produces mechanical weathering. Most generally, it is the ability of moving water to dislodge and transport rock particles
attrition
Attrition is when material such as rocks and stones carried by waves hit and knock against each other wearing them down
abrasion
Abrasion is a process of erosion which occurs when material being transported wears away at a surface over time. It is the process of friction caused by scuffing, scratching, wearing down, marring, and rubbing away of materials.
solution erode the coast
Present beach erosion prevention methods include sand dunes, vegetation, seawalls, sandbags, and sand fences.
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coastal features such as bays, headlands and beaches
Image result for coastal features such as bays, headlands and beaches
Headlands and bays are features of coasts that are formed by erosion. Waves wear down different types of rocks at different rates. Softer rocks wear away more quickly than harder rocks. Bays form where the waves erode soft rocks , but headlands are left as land that juts out into the water
crack, cave, arch, stump and stack.
Weathering and erosion can create caves, arches, stacks and stumps along a headland. Caves occur when waves force their way into cracks in the cliff face. The water contains sand and other materials that grind away at the rock until the cracks become a cave.
split
Spits occur when there is a change in the shape of the landscape or there is a river mouth or estuary. This is how spits are formed: Sediment is carried by longshore drift. When there is a change in the shape of the coastline, deposition occurs.