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Question
Briefly answer the following:
How.can deepening of the river bed help in preventing soil erosion?
Solution
Riverbed deepening will also lower the groundwater table along a river, causing a drop in the level of water in wells on the floodplain and threatening to dry out local vegetation. The related erosion of riverbanks — the banks of the Colorado below Hoover have in places been scoured back as much as 15 metres in a year — can undermine riverside property and structures such as road embankments and flood control levees.
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