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← GeographyWhich localized effect results when strong katabatic winds flow downslope from Antarctic ice sheets?
A)Formation of coastal polynyas✓
B)Intensification of ocean acidification
C)Increased glacial calving rates
D)Weakening of thermohaline circulation
💡 Explanation
When strong katabatic winds flow downslope, the wind stresses on the coastal waters induces offshore ice drift and divergence due to momentum transfer, maintaining open water areas. Therefore coastal polynyas form, rather than acidification, calving, or circulation changes which rely on other distinct processes and larger-scale factors.
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