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← GeographyWhich outcome results when nearshore bathymetry obstructs coastal upwelling?
A)Reduced nutrient availability for marine life✓
B)Strengthened offshore Ekman transport processes
C)Increased thermocline depth fluctuations locally
D)Enhanced nearshore oxygen saturation levels
💡 Explanation
Upwelling brings nutrient-rich water to the surface; bathymetric obstruction inhibits this, causing nutrient reduction because vertical water movement is physically impeded. Therefore, nutrient availability decreases locally, rather than Ekman transport increasing or oxygen content raising under nutrient limitation.
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