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← GeographyWhich outcome occurs when a meandering stream in a floodplain reaches its graded profile limit?
A)Accelerated headward erosion of tributaries
B)Increased deposition on an alluvial fan✓
C)Reduced sediment load exiting stream-bed
D)Enhanced formation of oxbow lake features
💡 Explanation
Increased deposition on an alluvial fan occurs because the stream's energy is primarily used for sediment transport; therefore, lateral migration and flooding increase alluvial fan creation down-gradient, rather than accelerated headward erosion or sediment load reduction.
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