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← GeographyWhich outcome occurs when a meandering stream erodes laterally until encountering a resistant geological formation beneath an oxbow?
A)Stream piracy and drainage divide shift✓
B)Increased fluvial terrace formation downstream
C)Accelerated delta formation at river's mouth
D)Enhanced groundwater recharge rates locally
💡 Explanation
Stream piracy happens because differential erosion exposes the bend causing the stream's flow path to divert to a steeper channel thereby forming a new shorter route and 'capturing' the stream. Therefore, it results in stream piracy rather than terraces which depends on sediment load.
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