Which risk increases when barrier island sediment replenishment halts?

💡 Explanation

Accelerated rate of coastal erosion on the mainland will occur if barrier islands erode, because these islands normally provide a buffer via wave energy dissipation (wave diffraction). Without it, wave energy directly impacts exposed coastline, therefore erosion accelerates at the coast, rather than being distributed.

• Which morphological outcome arises during the transition when multiple cirques erode a mountain mass?
• Which process increases when glacial meltwater stream volume increases?
• Which process accelerates desert pavement formation involving 'desert varnish'?
• Which landform evolution occurs because wave refraction focuses energy?
• Which risk increases when thawing permafrost destabilizes coastal cliffs near settlements?
• Which outcome results when melting permafrost destabilizes slopes?