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← GeographyWhich outcome occurs when hydraulic gradient decreases abruptly?
A)Oxbow lake development accelerates quickly.✓
B)Saltwater intrusion expands significantly inland.
C)Glacial calving rates significantly lower.
D)Deep ocean currents experience strong eddies.
💡 Explanation
Decreased gradient triggers increased sediment deposition and lateral channel migration because meander cutoffs occur via the avulsion mechanism. Therefore oxbow lake formation accelerates quickly, rather than increased saltwater intrusion which reflects submarine geomorphology driven by longshore drift.
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