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← GeographyWhich outcome is caused by increased acidity inhibiting upwelling?
A)Reduced nutrient availability to phytoplankton✓
B)Increased rate coral reef growth
C)Decreased intensity coastal fog formation
D)Enhanced carbon sequestration ocean depths
💡 Explanation
Reduced pH impairs calcium carbonate formation for shell-forming plankton; this in turn diminishes their density, impairing the *biological pump*, because less organic matter sinks, therefore nutrient upwelling decreases, rather than increases, and phytoplankton populations decline given less access to vital resources.
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