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Which outcome occurs when sediment discharge exceeds capacity in distributive fluvial systems?

A)Alluvial fan lobe switching develops
B)Channel avulsion decreases sharply
C)Suspended sediment concentration declines severely
D)Entrenchment of main channel results

💡 Explanation

Alluvial fan aggradation occurs. Increased sediment load causes **deposition**, because the carrying capacity is exceeded; therefore, a new lobe develops through lobe switching, rather than continued deposition in the current channel.

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