Which outcome occurs when overlying clay soils collapse into karst sinkholes?

💡 Explanation

A surface fluvial drainage pattern changes with sinkhole collapses, because water flows directly into the sinkhole via the mechanism of concentrated infiltration, rather than across the clay surface. Therefore surface watercourses divert rather than increased evapotranspiration in this dry situation.

• Which risk increases when degassing pathways become blocked within a volcanic dome?
• Which outcome results when sediment deposition obstructs a river delta distributary channel?
• Which outcome occurs when wind exceeds saltation threshold?
• Which mechanism primarily contributes to the U-shaped profile of a fjord?
• Which outcome occurs when a glacier retreats from bedrock?
• Which outcome is observed when subsurface clay layers impede water flow?