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Head ward Erosion ­ Upper course
This is when a river flows in to a valleys dead end.
It makes the river longer, by through flow

Vertical Erosion ­ Rejuvenated land and the upper course
Deepens the river, making it straight.
High discharge conditions, from rain or snow…

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As rivers go round slight corners they develop an even current
These corners are made by:
There has to start of with deep pools in the river bed
This alters the current, causing it to speed up and slow down causing deposition
The deposition makes riffles, shallow sections
The energy…


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