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3
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Where the river ends.
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4
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Where a small river joins a bigger one.
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5
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Rocks carried by the river bang into the bed and banks.
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6
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Rocks in the river smash and tap together and break into smaller, smoother, rounder particles.
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7
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A smaller stream or river that flows into a bigger one.
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8
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The boundary of the drainage basin.
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1
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Where the river starts.
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2
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Soluble particles such as limestone are dissolved into the acidic river water.
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4
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How the river and valley change shape going across the valley from one side to another.
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9
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The mnemonic used to remember erosion.
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