1. if the material is being held up in the water, this is known as ...
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2. potholes are created by eddies swirling pebbles inside a hollow, exaggerating the hollow.
3. a name for the change in direction of a rivers course...
- oxbow lake
4. what is abrasion
- the sand paper effect
- acids dessolving the material
- sheer force of the water
- the banging together
5. when material bounces along the bottom..