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Geography

Which morphological outcome primarily occurs due to coastal armoring?

A)Increased downdrift erosion rates
B)Enhanced sediment accretion upstream
C)Decreased wave reflection energy
D)Wider, more dissipative surf zones

💡 Explanation

Downdrift erosion increases with coastal armoring because wave energy, unable to erode the protected area, is focused on adjacent unprotected areas causing scour; therefore erosion increases, rather than dissipate, and sediment transport bypasses the armored section.

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