Which risk increases when sediment supply halts offshore breakwaters?

💡 Explanation

Tombolo formation focuses wave energy, accelerating downdrift erosion, because wave diffraction causes faster sediment transport towards structure, therefore erosion rates accelerate behind the tombolo feature, rather than affecting wave energy behind or rip currents.

• Which flooding outcome risks increased turbidity within coastal fjords?
• Which outcome results when freeze-thaw cycles excessively erode bedrock?
• Which event results from thawing permafrost causing differential ground subsidence beneath Arctic pipelines?
• Which risk increases along a floodplain when alluvial mining removes substantial sediment?
• Which climatic effect weakens near South America during El Niño?
• Which mechanism causes deflection of prevailing winds, influencing ocean currents and storm tracks, in mid-latitude regions?