Question:
Ocean acidification reduces carbon sequestration mainly by affecting
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 23, 2026
- Nitrogen fixation
- Phytoplankton respiration
- Calcifying organisms
- Dissolved oxygen
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Ocean acidification lowers the availability of carbonate ions needed by organisms such as corals, molluscs, and coccolithophores to form calcium carbonate shells.
This reduces calcification and consequently decreases long-term carbon sequestration.
Hence,
\[
\boxed{\text{Calcifying organisms}}
\]
are mainly affected.
Therefore,
\[
\boxed{(C)}
\]
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