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← GeographyWhich outcome results when differential settling occurs in alluvial deposits beneath urban infrastructure?
A)Increased risk of ground subsidence✓
B)Higher probability of flash floods
C)Enhanced aquifer recharge rates
D)Reduced stream channel avulsion
💡 Explanation
Ground subsidence increases because differential settling compacts heterogeneous alluvial materials unevenly under load, causing surface deformation driven by consolidation. Therefore, localized subsidence is more likely, rather than changes in flood dynamics or aquifer behavior, which are systems-level effects.
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