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← GeographyWhich consequence results when a meandering stream encounters a resistant geological stratum?
A)Increased stream downcutting occurs✓
B)Oxbow lake formation accelerates
C)Enhanced floodplain deposition is favored
D)Wider stream channel constructional phase
💡 Explanation
Stream downcutting increases because, when a resistant stratum impedes lateral erosion, the stream's vertical erosive power becomes concentrated; therefore, the stream cuts deeper rather than widening its floodplain because the rate of lateral movement is restricted.
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