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← GeographyWhich consequence results when increased sediment deposition overtops artificial levees on an alluvial plain?
A)Enhanced groundwater recharge rates develop
B)Formation of crevasses and splays begins✓
C)Accelerated chemical weathering of bedrock
D)Reduced floodplain biodiversity expands range
💡 Explanation
Overtop artificial levees lead to localized hydraulic failures initiating crevasses and splays because increased sediment load causes concentrated erosion. Therefore, crevasses form rather than groundwater changes, since overtopping is a surface process.
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