How would acidification of seawater affect marine organisms?

Amount of dissolved carbon will be decreased in the sea water.

Explanation:

Amount of dissolved carbon is an important source of energy for the organisms found in aquatic system. It is also useful in promoting growth of corals and in the formation of shell of many marine forms. When the acidification of sea water occurs, the dissolved carbon amount is decreased in the marine water and thus the growth of corals in hindered. The shell formation in the shell forming forms also gets affected and thus their death may occur.