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1
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small fragments of rock which have been worn away from a mass by waves or water
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3
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wearing away of land by natural forces
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5
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a liquid you find at the beach
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7
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a formation that transmits water from one place to another
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9
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the vertical distance from water level
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10
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a man made waterway cut through land
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11
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the return of water to the sea following the uprush of waves
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2
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a map that shows elevation by contour lines
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4
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a flow of water along a bed in the earth
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6
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water vapour floating in the air
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8
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a ridge of rock lying below the surface of the sea
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12
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water that rises and falls towards the shore
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