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← GeographyWhich risk increases approaching the oxbow's filled state?
A)Avulsion path establishment over the levee✓
B)Evaporite formation due to dissolved salts
C)Braided stream development within channel
D)Increased bluff erosion at a meander
💡 Explanation
Avulsion risk increases due to sedimentation raising the oxbow's bed, decreasing gradient of the original channel, because the river will preferentially seek a steeper path. Therefore, flow shifts result in a new course over the floodplain, rather than remaining channeled.
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