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← GeographyWhich outcome results when insolation decreases in coastal dune ecosystems?
A)Vegetation species richness decreases considerably✓
B)Transverse dunes progressively become stabilized
C)Barchan dune migration accelerates rapidly
D)Longitudinal dune crests abruptly become undulated
💡 Explanation
Plant colonization slows due to reduced photosynthesis causing a net vegetation productivity decrease because energy via insolation becomes the limiting factor, hence species richness ultimately falls; therefore diversity decreases, rather than dune forms immediately shifting which requires longer term aeolian changes.
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