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2
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Bits of rock and sand in waves grind down cliff surfaces like sandpaper.
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5
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The water rolling back into the sea is called the what
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8
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Waves are cause by what dragging over the surface of the water
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9
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an extended stretch of beach material that only joins the mainland at one end. They start to form where there is a change in the direction of the coastline.
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10
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This replaces beach or cliff material that has been removed by erosion or longshore drift
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11
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Land becomes marsh, slowing waves and reducing erosion
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12
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This involves building structures to protect the coast - often expensive and long lasting coastal defence
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13
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This involves working with nature by using natural materials or allowing nature to take back areas- it is also cheaper coastal defence that is unlikely to last long
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14
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The movement of eroded material up and down, and along the coast.
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15
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A wooden barrier built at right angles to the beach to prevent the movement of beach material along the coast by longshore drift
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17
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Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion.
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18
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The movement of material along the beach is called this
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23
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A wall built on the edge of the coastline.
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