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← GeographyWhich mechanism initiates transverse dune formation against moderate winds?
A)Saltation sorting airborne particles
B)Vegetation trapping airborne grains✓
C)Sustained aeolian surface creep
D)Differential surface moisture tension
💡 Explanation
Vegetation initiates stabilization, causing aeolian sediment accumulation; this is vegetation-induced deposition, because the plants act as windbreaks and trap sand. Therefore, dunes form, rather than a flat sand sheet from unrestricted `saltation sorting`.
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