Which consequence results when a migrating barrier island submerges?

💡 Explanation

Increased mainland erosion occurs because submergence removes the island's 'wave shadow,' increasing wave energy on the coast, therefore mainland is exposed to greater hydraulic action, rather than offshore effects which cause other issues under appropriate conditions.

• Which process drives increased surface productivity due to coastal upwelling?
• Which impact on South American fisheries results when El Niño-Southern Oscillation (ENSO) reduces coastal upwelling?
• Which process initiates oxbow lake formation when a river's channel migrates laterally?
• Which consequence results when accelerated pedogenesis exceeds stabilization limits?
• Which risk increases during rapid snowmelt in mountainous permafrost regions experiencing solifluction?
• Which depositional outcome occurs where a deeply entrenched river emerges onto a broad alluvial plain?