7. There is evidence that the increasing carbon dioxide levels in the atmosphere are causing oceans to become more acidic. Ocean acidification may negatively
impact species of phytoplankton, which are microscopic photosynthetic
organisms that live in surface waters. Explain how the carbon cycle might be
affected if phytoplankton populations were to decrease.

The reduction in population may reduce the amount of carbon dioxide drawn out of the atmosphere and transferred to the deep ocean for long-term storage. Then when the phytoplankton cell dies, it sinks to the ocean floor, taking with it the carbon in its body.

Explanation:

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.