Which consequence results when wave-supported abrasion weakens coastal cliffs?

💡 Explanation

More rapid barrier island migration occurs because wave erosion at the cliff base undermines the structure accelerating collapse and sediment loss— positive feedback. Therefore, the island quickly changes shape; rather than beach building or bore alterations, which concern sediment deposition or tidal flow rather than coastal composition.

• Which mechanism causes crustal thinning directly above a strike-slip fault zone?
• Which feedback causes speleothems to increase deposition rates?
• Which mechanism explains anomalously deep fjord depths compared to adjacent continental shelf areas?
• Which risk increases when an earthquake occurs near fine-grained unconsolidated sediment deposits?
• Which outcome primarily results from water being dragged down by a subducting oceanic plate?
• Which displacement results from strike-slip motion along transforms?