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 risk increases along subduction zones following prolonged tectonic quiet?
• Which flow regime results when glacial meltwater discharge increases within a fjord system?
• Which outcome occurs when sediment supply decreases significantly in a coastal area with a longshore current?
• Which consequence results when wave-supported abrasion weakens coastal cliffs?
• Which outcome results when intense rainfall strikes thick loess deposits?
• Which global outcome results when increased aerosol concentrations amplify Earth's albedo effect?