Which outcome results from hydraulic action eroding stacks?

💡 Explanation

Stacks are vulnerable to hydraulic action; water forces fracturing. Weakened supports destabilize the entire column because wave energy concentrates at the base, therefore stack structures degrade, rather than sediment, reefs, or new feature acceleration.

• Which effect occurs when sustained offshore winds drive coastal upwelling of nutrient-rich water?
• Which outcome is LEAST likely when lateral displacement along transform faults obstructs submarine channels?
• Which long-term outcome is most directly influenced by pedogenesis?
• Which hazard increases downstream when a meandering river forms an oxbow?
• Which outcome accelerates mechanical weathering on shale slopes?
• Which outcome occurs when freeze-thaw cycles induce solifluction on steep Arctic slopes?