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← GeographyWhich mechanism causes reduced sediment deposition rates within an oxbow lake compared to the active river channel?
A)Decreased water velocity and energy✓
B)Increased nutrient input from runoff
C)Enhanced wave action along shoreline
D)Higher concentration of suspended silt
💡 Explanation
When a river meander forms an oxbow lake, flow is cut off with lower gradient because the channel no longer provides a direct path leading energy to dissipate. Therefore, decreased water velocity deposition occurs, rather than other processes require a linked condition through flow energy.
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