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← GeographyWhich outcome occurs when increasing temperature reduces stream ice-dam duration in subpolar regions during glacier-surge events?
A)Decreased magnitude of glacial outburst floods✓
B)Increased deposition of ocean sediments
C)Enhanced thermohaline current stratification
D)Accelerated upwelling cycles in coastal areas
💡 Explanation
Decreased ice-dam duration reduces outburst floods because the dam's ability to accumulate massive water volumes diminishes, decreasing floodwater potential. Therefore, streams experience smaller floods rather than intensified marine processes because upstream conditions alter first.
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