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← GeographyWhich outcome results from reduced vegetation on dune systems?
A)Increased grain saltation amplitude✓
B)Lowered aerodynamic roughness length
C)Enhanced nutrient absorption rates
D)Decreased boundary layer turbulence
💡 Explanation
Increased wind exposure leads to the mechanical effect of increased grain saltation amplitude of sand because vegetation normally provides a windbreak; therefore, increased saltation occurs, rather than nutrient changes or turbulence reduction, without vegetation present.
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