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Ocean acidification reduces carbon sequestration mainly by affecting

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Ocean acidification: \[ \boxed{ CO_2 + H_2O \rightarrow H_2CO_3 } \] reduces carbonate ions, affecting \[ \boxed{\text{Calcifying organisms}.} \]

Updated On: Jul 18, 2026

Nitrogen fixation
Phytoplankton respiration
Calcifying organisms
Dissolved oxygen

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The Correct Option is C

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