The effect of increased atmospheric carbon dioxide on marine organisms is:
"It will reduce the number of carbonate ions in ocean water, hence reducing the ability of coral to form shells."
What is atmospheric carbon dioxide?
This simply refers to the amount of carbon dioxide that is available in the atmosphere and which can interact with the ecosystems of the Ocean.
Because high atmospheric carbon dioxide reduces carbonate ions, this in turn affects aquatic life.
Learn more about atmospheric carbon dioxide at:
https://brainly.com/question/431949
