The graph shows data collected near the Mauna Loa volcano in Hawaii from 1955 to 2015. The data includes atmospheric CO2 levels, seawater CO2 concentrations, and seawater pH readings. If the current trend continues, the seawater near Mauna Loa will likely become __ due to the changing concentration of __ in the water.

a. the production of carbon dioxide through the process of photosynthesis

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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.