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← GeographyWhich feedback causes increased shoreline erosion near an oxbow lake?
A)Positive feedback by flow deflection✓
B)Negative feedback by sediment trapping
C)Dynamic equilibrium by groundwater upwelling
D)Isostatic rebound by reduced sediment load
💡 Explanation
Flow deflection creates positive feedback that drives increased erosion. The deflected current impinges upon the outer bank of the bend, weakening banks, creating continued erosion and undercutting, because sediment is removed rather than deposited therefore reinforcing the erosional processes.
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