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← GeographyWhich risk increases when a region's groundwater table declines significantly due to elevated evaporative loss during longer summers?
A)Sudden sinkhole formation increases noticeably✓
B)Increased frequency brackish water inversions
C)More erratic geyser eruption intervals
D)Greater river sediment deposition upstream
💡 Explanation
Groundwater declines reduce pore pressure resisting soil collapse; increased evaporative loss concentrates aggressive ions which promotes dissolution. Karstification accelerates from mechanical weathering; therefore more sinkholes form suddenly rather than if water levels remained high, supporting sediment.
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