Which outcome occurs when rapid groundwater extraction amplifies existing fracture networks above confined limestone aquifer systems?

💡 Explanation

Surfacewater sinks occur because increased effective stress due to groundwater decline accelerates the **mechanical weathering** of bedrock. The surface collapses into voids rather than causing widespread downcutting; therefore, sinkholes form through spalling.

• Which secondary effect consistently results when a deep-sea trench forms at a subduction zone?
• Which weathering outcome is accelerated by thermal expansion?
• Which effect of the earth's rotation most directly influences global ocean current deflection around continents?
• Which outcome occurs when a subduction zone fault locks?
• Which mechanism generates tsunamis after significant seafloor displacement?
• Which hydrologic consequence results when extensive levee systems constrict a major river's floodplain during a large flood event?