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← GeographyWhich outcome occurs when a meander stream encounters increased resistant bedrock?
A)Rapid stream channel incision✓
B)Increased point bar deposition
C)Braided stream network expansion
D)Increased floodplain sedimentation rate
💡 Explanation
Rapid stream channel incision develops, because knickpoint migration slows over resistant rock, due to reduced channel incision via abrasion; therefore downcutting persists, rather than lateral migration on the floodplain.
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