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Geography

Which outcome occurs when a glacial outburst flood rapidly decelerates?

A)Varved lake sediment deposition increases
B)Ice ablation rates significantly decrease
C)Katabatic wind speeds substantially increase
D)Esker formation dynamically accelerates

💡 Explanation

Increased varve formation arises from rapid sediment settling via fluid dynamics; the settling velocity decreases as the floodwaters slow. Deposition is due to Stokes Settling because less energy is maintaining suspension, therefore sedimentation increases, rather than ice or wind changes.

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