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← GeographyWhich depositional outcome increases when wind speed decreases across parabolic dunes?
A)Increased sediment deposition at slipface✓
B)Enhanced saltation in dune crest region
C)Formation of transverse dune ridges
D)Stabilization of dune migration rate
💡 Explanation
Increased sediment deposition on the slipface occurs through gravity segregation, because decelerating winds lose energy; therefore, coarser grains deposit quicker rather than suspension of finer particles into the leeward zone or causing ridge formation.
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