Ocean acidification occurs mainly due to the absorption of excess carbon dioxide (CO₂) from the atmosphere. CO₂ reacts with seawater to form carbonic acid, lowering the pH of the ocean and affecting marine life.
Why does ocean acidification occur?
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This question is part of 🌍 Current Affairs within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.