Which outcome occurs when heavy rainfall saturates unstable overburden above karst bedrock?

💡 Explanation

Increased saturation raises pore water pressure, thereby reducing effective stress, and thus leading to soil weakening according to the mechanism of effective stress reduction. Therefore, sinkhole collapse becomes more likely because of the decreased soil strength rather than immediate alteration of the aquifer or bedrock.

• Which outcome occurs when earthworm populations decline drastically?
• Which outcome results when pre-existing rocks undergo differential erosion by wind?
• Which process limits the height of topographic features along a transform fault boundary?
• Which process explains differences in fjord sill depth and isostatic rebound rates?
• Which process accelerates soil horizon development during temperate forest pedogenesis?
• Which process degrades lagoon habitat behind barrier islands?