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← GeographyWhich outcome occurs when increased freshwater runoff near Greenland disrupts ocean upwelling?
A)Reduced nutrient availability offshore✓
B)Increased coastal phytoplankton blooms
C)Enhanced deep-sea methane release
D)Strengthened coastal erosion processes
💡 Explanation
Reduced salinity inhibits sinking; this disrupts thermohaline circulation, weakening upwelling. Reduced upwelling decreases nutrient transport from deep waters because nutrient supply depends on vertical water movement, therefore the availability decreases offshore rather than enriching the biomass.
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