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Which 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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