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← GeographyWhich consequence results when an alluvial river's sinuosity increases significantly?
A)Avulsion into a new floodplain✓
B)Increased gradient along steep canyons
C)Stabilization due to reduced entrenchment
D)Diminished sediment deposition at deltas
💡 Explanation
Increased sinuosity in alluvial rivers amplifies lateral erosion; this drives *avulsion*. Because the river establishes a new, shorter, steeper path; therefore avoiding increased flow resistance; rather than stabilizing or modifying delta sediment deposition which do not follow from sinuosity changes alone.
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