Which outcome results when a coastal bluff experiences undercutting due to wave-driven, sediment-laden longshore drift?

💡 Explanation

Increased slope instability results because basal erosion via hydraulic action removes supporting material, therefore over-steepening the slope and increasing the likelihood of a landslide or bluff collapse, rather than promoting dune formation which requires sediment deposition.

• Which consequence results when thermal gradients weaken Hadley cell convection?
• Which long-term isostatic process elevates previously submerged fjord landscapes?
• Which risk increases when coastal hydro-engineering prevents upwelling?
• Which downslope movement occurs when permafrost thaw increases soil moisture above sediment shear strength on a tundra slope?
• Which risk increases when increased glacial erosion coincides with intense wind deflation?
• Which outcome results from increased mantle dehydration during subduction?