Which outcome occurs when a barrier island's dune system loses vegetation cover?

💡 Explanation

Increased island migration landward occurs because reduced vegetation weakens the dune structure, thus wind and waves promote overwash and sediment transport landward. This leads to retreat rather than freshwater retention, marsh expansion or current deceleration as these depend on a stable island.

• Which mechanism deflects air masses to the right in the northern hemisphere?
• Which atmospheric motion results because the Coriolis effect deflects air masses moving poleward in Hadley cells?
• Which atmospheric effect causes deflection of large-scale ocean currents?
• Which element drives the formation of subtropical gyres in ocean basins?
• Which mechanism impedes vertical nutrient replenishment within stable subtropical ocean gyres?
• Which substance accumulates when weathering decreases infiltration rates?