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← GeographyWhich outcome arises due to differential compaction within alluvial deposits overlying existing infrastructure?
A)Localized subsidence of structural foundations✓
B)Increased biogenic gas production rates
C)Accelerated mineral precipitation reactions
D)Formation of extensive playa lake systems
💡 Explanation
Localized subsidence occurs because differential compaction causes volume changes dependent on material type and distribution. Compaction rates vary in the alluvial sediments; therefore, settled sections near the infrastructure induce structural stress rather than biogenic gas or mineral changes.
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