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← GeographyWhich channel outcome occurs when levee failure diverts a river?
A)Avulsion creates a new course✓
B)Braiding initiates from increased sediment
C)Entrenchment from flow energy surge
D)Aggradation stabilizes previous channel
💡 Explanation
Avulsion occurs due to levee failure because concentrated flow shifts suddenly through the breach, thereby forming an entirely new channel rather than channel widening or general entrenchment of a currently operating course.
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