Which of the following best describes the effect of increased atmospheric carbon dioxide on marine organisms?


Question: Which of the following best describes the effect of increased atmospheric carbon dioxide on marine organisms? 

A). Ocean acidification
B). Water pollution
C). Air pollution
D).adultration in water


 Answer – A). Ocean acidification. Ocean acidification reduces the amount of carbonate, a key building block in seawater. This makes it more difficult for marine organisms, such as coral and some plankton, to form their shells and skeletons, and existing shells may begin to dissolve. 
 
(Although option  B And D are also correct , but Ocean acidification is a better Answer.)

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