Hanging valleys are formed by the action of ____________.
A
Moving ice
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B
Wind
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C
Running water
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D
None of these
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Solution
The correct option is D Running water Hanging valleys are formed by the action of running water.
A hanging valley can be formed when the lower valley has a greater rate of erosion. This can be cause by 2 glacier flows, one feeding the other. This may also be caused by a greater flow of water in the lower valley or soft rock layers that erode more quickly.