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← GeographyWhich hydrologic outcome occurs when stream sinuosity increases disproportionately?
A)Oxbow lake formation accelerates greatly✓
B)Incised meanders cut deep valleys
C)Braided channel sediment deposition increases
D)Ephemeral streamflow volume surges abruptly
💡 Explanation
Increased sinuosity enlarges meander loops, initiating neck cutoff. Avulsion via neck cutoff creates an oxbow lake because the river takes a shorter, steeper path, therefore an oxbow forms quickly rather than normal migration or other channel changes.
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