Which landform evolves when wave refraction concentrates erosion?

💡 Explanation

Barrier island breaching involves wave refraction focusing energy; because of this, the island erodes and retreats landward because sediment transport is accelerated. The result is breaching and retreat rather than spit growth that’s due to longshore drift without similar concentrating wave action, or atoll growth relating plate tectonics.

• Which outcome occurs when eolian sediment transport diminishes suddenly?
• Which outcome occurs along a stream bed when streamflow undergoes hydraulic sorting?
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• Which risk increases drastically due to prolonged tephra fallout near active stratovolcanoes?
• Which outcome occurs when a river's natural levees collapse under extreme hydraulic pressure?
• Which mechanism disrupts marine food webs when intensified coastal upwelling brings anoxic water to the surface?