Which mechanism causes a sea stack to eventually collapse?

💡 Explanation

Marine undercutting weakens the base via hydraulic action and abrasion along pre-existing vertical fractures, which removes basal support leading to gravitation collapse; therefore, it causes failure rather than tidal forces, isostatic uplift, or glacial deposition.

• If intense seasonality strengthens chemical weathering on parent rock, which pedogenesis outcome accelerates?
• Which outcome negatively impacts coastal fisheries during rapid thermocline deepening?
• Which mechanism primarily controls orographic lift leading to enhanced cirque formation on mountain windward slopes?
• Which risk increases following alluvial terrace abandonment near a waterway?
• Which process drives the global thermohaline circulation in Earth's oceans?
• Which outcome occurs when atmospheric CO2 decreases globally?