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question		réponse
Abrasion commencer à apprendre		A type of erosion caused by waves picking up sediment and rubbing them against cliffs.
Attrition commencer à apprendre		A type of erosion where sediment carried by waves is worn down as they collide with each other, so they become smaller more rounded.
Bars commencer à apprendre		A ridge of sand or shingle across the entrance of a bay.
Beach nourishment commencer à apprendre		Also known as recharge, when sand or shingle is added to a beach to make it higher or wider.
Concordant coastline commencer à apprendre		When a rock type runs parallel to the coastline.
Discordant commencer à apprendre		Where bands of hard and soft rock lie at right angles to the coastline forming headlands and bays.
Erosion commencer à apprendre		The action of water wearing away rocks. There are four key erosion processes – hydraulic action, abrasion, solution and attrition.
Fault commencer à apprendre		A fracture or break in rocks caused by tectonic activity.
Hydraulic action commencer à apprendre		The sheer force of waves wearing away sea cliffs.
Joint commencer à apprendre		A vertical crack within a layer of rock formed as rock cools during the metamorphic process.
Longshore drift commencer à apprendre		The movement of material along the beach transported by wave action.
Managed retreat (realignment) commencer à apprendre		Allowing the shoreline to change naturally but manage and direct the process.
Mass movement commencer à apprendre		The movement of material down a slope due to gravity e.g. sliding.
Prevailing wind commencer à apprendre		Direction in which the wind blows from most frequently
Saltation commencer à apprendre		A process where sediment is transported by repeatedly being picked up and dropped as wave energy fluctuates
Seasonality commencer à apprendre		Annual recurring periods during the year or specific periods when events occur e.g. coastal flooding.
Sliding commencer à apprendre		Where material moves rapidly downslope in one go e.g. a landslide.
Slumping commencer à apprendre		When material moves downslope in a rotational manner along a curved surface.
Solution (erosion) commencer à apprendre		Slightly acidic/salty water can dissolve some rocks e.g. chalk.
Solution (transport) commencer à apprendre		Dissolved sediment in the sea is moved by wave action.
Storm frequency commencer à apprendre		The number of storms that occur in a given period of time.
Suspension commencer à apprendre		Smaller sediment particles are carried within the wave action.
Traction commencer à apprendre		Larger sediment is rolled along the sea bed.
Wave-cut platform commencer à apprendre		A flat area of rock at the bottom of cliffs seen at low tide.
Weathering commencer à apprendre		The breakdown and decay of rock by natural processes acting on rocks.

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