which of these human activities is most likely to cause the excessive growth of phytoplankton in the world's ocean?

human activities can cause excess nitrogen to enter the water ... population growth can occur (known as a plankton bloom). 3 ... exist in marine and fresh waters around the world, though the one in the Gulf of Mexico is particularly significant ... A shark could swim the fastest and is most likely to make it out of the dead.

Explanation:

basically breathing because we are giving the ocean carbondioxide.