Which risk sharply increases when pumping groundwater excessively from karst aquifers?

💡 Explanation

Sinkhole risk increases due to increased hydraulic gradient, which accelerates dissolution of the limestone bedrock; this is potentiated dissolution. Because support for surface sediment decreases, sinkholes form, therefore causing surface collapse, rather than changes in saltwater balance.

• Which outcome results when subsurface salt dissolves adjacent to faults?
• Which catastrophic effect is initiated by density currents generated from pyroclastic tephra flows entering a stratified lake?
• Which risk increases following a major pyroclastic eruption?
• Which outcome occurs when katabatic winds encounter stable stratification?
• Which outcome is most likely when artificial levees collapse along a major river?
• Which process generates a tarn when glacial ice melts within a cirque basin?