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Assertion (A): Increasing atmospheric CO2 reduces carbonate ion availability in seawater. Reason (R): Dissolved CO2 forms carbonic acid, which releases hydrogen ions that bind with carbonate ions.
This question appeared in the OPSC Prelims 2025 examination (GS). It is Question 54 out of 178 questions in this paper.
This question was part of the OPSC Prelims 2025 (GS). The OPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all OPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.