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← GeographyWhich outcome is observed in a fjord experiencing upwelling?
A)Enhanced primary productivity at surface✓
B)Increased sediment deposition from glaciers
C)Decreased dissolved oxygen near bottom
D)Reduced coastal erosion from wave action
💡 Explanation
Upwelling brings nutrient and oxygen-rich water to the surface; therefore, this causes phytoplankton blooms boost primary productivity because they have the nutrients for photosynthesis, rather than promoting oxygen drawdown; this happens under stratification.
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