River Erosion Flashcards

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Identify the four processes of erosion that occur within a river.
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Abrasion or corrasion, attrition, hydraulic action and solution or corrosion.

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Identify the four processes of erosion that occur within a river.
What is attrition?
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Attrition is when sediment particles knock against the bed or each other and break, becoming more rounded and smaller as you move down the river.

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What is attrition?
What is the solution?
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Solution (or corrosion) is when acidic water dissolves rocks such as chalk or limestone.

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What is the solution?
What happens to the shape and size of bed load as you move down the river?
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It becomes more rounded and smaller.

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What happens to the shape and size of bed load as you move down the river?
What is lateral erosion?
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Lateral erosion erodes the banks of the river. This is more common in the middle and lower courses of a river.

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What is lateral erosion?




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