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← GeographyWhich mechanism initially reduces North Atlantic Deep Water formation amplifying climate cooling?
A)Ice Albedo feedback decreases salinity✓
B)Sea ice expansion isolates currents
C)Atmospheric dust deposition halts sinking
D)Reduced river runoff decreases density
💡 Explanation
When climate cooling occurs, increased ice formation causes higher albedo because increased reflection reduces local warming, melting sea ice freshening surface waters which reduces the density suppressing NADW formation weakening global circulation. Therefore, ice albedo amplification occurs, rather than sea ice isolation, dust deposition changes, or reduced runoff, effects require independent climate factors.
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