Which effect causes increased coastal erosion when longshore transport is disrupted?

💡 Explanation

Increased coastal erosion occurs due to wave refraction amplification when structures obstruct longshore transport, because sediment starvation causes incident waves to focus energy onshore, therefore increasing erosion rates rather than distributing sediment more evenly.

• Which risk increases when groundwater extraction reduces pore pressure near a fault line experiencing tectonic stress?
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• Which hazard increases where soluble bedrock collapses suddenly?
• Which outcome occurs when groundwater calcium carbonate saturation decreases near stalactites?