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← GeographyWhich outcome is caused by blocked stream meander necks?
A)Formation of an oxbow lake✓
B)Increased river sediment capacity
C)Formation of a braided channel
D)Down-cutting of the riverbed
💡 Explanation
The abandonment of stream meanders via neck blockage causes oxbow lakes because the thalweg then bypasses the meander loop via channel avulsion; therefore an oxbow lake forms rather than wider channels because deposition exceeds erosion.
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