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← GeographyWhich outcome results when ice damming ruptures during glacial lake outburst floods?
A)Catastrophic downstream sediment deposition✓
B)Enhanced groundwater recharge rates
C)Local isostatic rebound acceleration
D)Reduced coastal erosion effectiveness
💡 Explanation
Catastrophic sediment deposition results from ice damming rupture because rapid discharge increases stream capacity and competence, triggering unprecedented erosion and transport, leading to massive alluvial deposition downstream, rather than other effects given the sudden energy surge.
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