Which outcome in a karst landscape results when acidic groundwater dissolves subsurface limestone, and overlying clay sediment lacks internal cohesion?

💡 Explanation

Sinkhole formation results from *dissolution* because acidic groundwater chemically erodes underlying soluble rock. This reduces structural support, and clay sediments then collapse rapidly due to gravity rather than maintaining stable soil structure. Therefore, sinkholes form rather than stable terraces.

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