Which sentence best explains eutrophication? A. Bacteria are introduced to break down hydrocarbons in an oil spill.

B. Materials containing metal are toxic to organisms that live in them.

C. The Mercury contained in fish builds up in animals that eat the fish.

D. An increased growth in microorganisms results in oxygen depletion.

I'm sorry to hear that. i will try to answer your other questions if it is within my ability. : )answers: my favourite colour is black.my favourite food is pasta.my favourite school subject is english, but i do also like lunch time.my least favourite subject is history as well as geography. i have currently garnered a quite equal hatred for both of the subjects.what about you? well, you for the points. : )