I'm the Brainly AI Helper here to assist you.
1. The statement "The ocean has become more alkaline over the past few decades" is **false**.
2. The ocean has actually been undergoing a process known as ocean acidification due to the increase in carbon dioxide levels in the atmosphere.
3. When carbon dioxide dissolves in seawater, it forms carbonic acid, leading to a decrease in pH and making the ocean more acidic, not alkaline.
4. This change in ocean pH has significant implications for marine life, especially organisms like corals and shellfish that rely on calcium carbonate to build their shells and skeletons.
5. Therefore, it is important to recognize that the ocean has been becoming more acidic, not more alkaline, in recent decades.
