Which risk increases when wave energy encounters unconsolidated coastal sediment?

💡 Explanation

Increased wave energy destabilizes coastal sediments, increasing sediment transportation via longshore drift because wave action leads to higher erosion rates by hydraulic action and abrasion. Therefore, sediment supply to the longshore current increases, rather than decreased wave refraction.

• Which mechanism causes periodic bursts of sediment flow across alluvial fans during flash floods?
• Which outcome occurs when tectonic plate movement constricts oceanic straits?
• Which effect results from persistent strong Coriolis force?
• Which outcome increases due to decreasing stream competence in alluvial fans?
• Which mechanism most directly enhances stream downcutting into bedrock in humid temperate climates?
• Which mechanism intensifies volcanic eruption explosivity when subducting slab dehydrates?