Which outcome decreases wave energy transmitted landward across barrier islands?

💡 Explanation

Seaward progradation (growth) leads to a wider surf zone, increasing wave dissipation through bottom friction because shallower water reduces the wave height and energy reaching the landward side; therefore wave impact diminishes, rather than increases from migration or inlets.

• Which primary effect follows the artificial lengthening or heightening of river levees to manage flood risk?
• Which erosional outcome occurs when a dam interrupts alluvial sediment deposition downstream?
• Which increased risk results as sinkhole density increases?
• Which outcome results from thermal expansion in permafrost?
• Which process influences the final slope stability of basaltic lava flows post-eruption?
• Which process initiates headwall erosion to form distinct glacial cirques given seasonal freeze-thaw cycles?