Which outcome occurs when hydraulic action weakens sea stacks?

💡 Explanation

Notched sea caves form because hydraulic action, driven by wave energy, erodes the base of the stacks by the force of water. Therefore, undercutting leads to cave formation rather than other geological or ocean dynamics under different force exposures.

• Which geological feature results primarily from sediment accretion within an oceanic trench in a subduction zone?
• Which outcome occurs when increased chemical weathering decreases soil cohesion?
• Which outcome results downstream when extensive levee construction constricts a river?
• Which risk increases when a large earthquake causes liquefaction in loosely packed, water-saturated soil?
• Which ecological consequence arises when deep-sea methane hydrate destabilization induces widespread coastal upwelling?
• Which morphological consequence results when neck cutoff occurs?