When oceans absorb more carbon dioxide, they become more acidic due to the formation of carbonic acid. This increased acidity can affect marine organisms, especially those that rely on compounds like calcium carbonate for their structures.
Among the compounds listed, calcium carbonate will be affected by the increased acidity in the oceans. Marine organisms such as corals, mollusks, and some plankton use calcium carbonate to build their shells or skeletons. When the ocean becomes more acidic, it can dissolve calcium carbonate, making it harder for these organisms to maintain their structures. This can have negative effects on their survival and the entire marine ecosystem.
In summary, the compound found in marine organisms that will be affected by the increased ocean acidity due to absorbing more carbon dioxide is calcium carbonate.
