252136
Description
Flashcards by rosetinley, updated more than 1 year ago
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Created by rosetinley
about 11 years ago
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| Question | Answer |
| Abrasion | This occurs when the load the river is carrying repeatedly hits the river bed and the banks, causing some of the material to break off. |
| Hydraulic Action | This is the sheer force of the water hitting the bed and the banks of the river. This is most efficient water is moving fast and there is a lot of the water. |
| Attrition | This is when the stones and boulders carried by the river knock against each other and over time are weakened, causing bits to fall off and they reduce in size. |
| Corrosion | This occurs when the river flows on certain types of rock, such as chalk and limestone. These are soluble in rainwater and become part of the water as they are dissolved by it. |
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