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← GeographyAlong an alluvial river, which outcome results due to bank undercutting?
A)Meander bend creation, migration✓
B)Delta sediment size reduction
C)Oxbow lake erosion increase
D)Groundwater infiltration velocity decrease
💡 Explanation
Meander bends form and migrate because lateral erosion causes a positive feedback known as “bankfull discharge”, therefore the river shifts course rather than becoming stabilized. Delta formation relates to deposition, and groundwater relates to grain-sizes.
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