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← GeographyWhich flow behavior arises when a meandering stream encounters a sudden decrease in channel slope?
A)Braiding due to sediment deposition✓
B)Increased lateral erosion of banks
C)Reduced sediment transport capacity
D)Hyperconcentration of suspended load
💡 Explanation
When a meandering stream's slope decreases suddenly, the sediment transport capacity reduces because flow velocity decreases, leading to sediment deposition and channel division into multiple, interconnected channels (braiding). Therefore, braiding results, rather than erosion, transport reduction alone, or hyperconcentration which require different stream dynamics.
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