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← GeographyWhich outcome occurs when tectonic uplift reduces discharge on an alluvial fan system?
A)Increased sediment deposits in proximal areas✓
B)Intensified braided stream channel formation
C)Enhanced chemical weathering of mineral grains
D)Accelerated delta avulsion near river mouths
💡 Explanation
Reduced discharge lowers the system's capacity, leading to increased deposition of sediment by the mechanism of flow competence decline in proximal areas because the transport ability decreases; therefore, deposition is enhanced there, rather than further downstream.
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