Which mechanism increases sinkhole formation over limestone aquifers?

💡 Explanation

Lowering the water table causes more aeration of limestone, so acid dissolution by groundwater increases, thereby enlarging subsurface voids and leading to sinkhole collapses, rather than other choices near surface.

• Which atmospheric consequence occurs when polar cell weakening develops?
• Which consequence results when soil experiences increased rates of bioturbation?
• Which process limits internal dome growth in viscous lava?
• Which soil horizon develops rapidly when vegetation cover expands?
• Which hazard intensity increases when fine tephra accumulates?
• Which profile change happens when sediment bioturbation accelerates?