Sinkholes form when caves enlarge so much that their ceilings collapse due to the force of gravity.

Question

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Sinkholes are typically formed when underground water dissolves limestone and other types of soluble bedrock. The resulting caverns can grow so large that the overlying ground collapses, causing a sinkhole. This collapse can be triggered by heavy rains, seismic activity or human activities that cause the ground to weaken.

Sinkholes Form When Caves Enlarge So Much That Their Ceilings