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← GeographyWhich feedback results when vegetation stabilizes coastal dunes?
A)Decreased eolian transport capacity✓
B)Increased littoral current velocity
C)Enhanced sand supply landward
D)Accelerated dune migration onshore
💡 Explanation
Decreased eolian transport capacity results from vegetation acting via aerodynamic roughness. Larger roughness decreases surface wind shear, therefore reducing sand entrainment rather than facilitating transport, because vegetation traps sand lowering wind velocity.
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