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← GeographyWhich outcome results when extensive levee construction increases river flow velocity?
A)Aggravated downstream sediment deposition increases✓
B)Decreased overbank flooding during peak flow
C)Reduced river channel bank erosion risk
D)Enhanced aquatic habitat diversity locally
💡 Explanation
Increased flow velocity accelerates sediment transport; therefore, downstream deposition is aggravated because capacity increases due to increased kinetic energy exceeds transport capacity, rather than other effects that occur locally upstream.
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