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← GeographyWhich outcome occurs when a meandering stream encounters layered sedimentary rock with varying resistance to erosion?
A)Formation of incised meanders✓
B)Increased sediment deposition rates
C)Amplified downstream flood pulses
D)Accelerated chemical weathering rates
💡 Explanation
Formation of incised meanders occurs because differential erosion carves deeper valleys; the stream's vertical incision through the rock due to downcutting enhances the meander's shape. Therefore, incised, rather than freely migrating, meanders develop because the bedrock constrains lateral movement.
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