How might an oil spill affect organisms in a marine ecosystem?

Question

Study reveals sunlight can help dissolve oil into seawater

a
It may cause an increase in carbon dioxide in the atmosphere.
b
It may trap organisms and decrease sunlight below the water's surface.
c
It may add CFCs and PCBs to Earth's atmosphere.
d
It may cause overgrowth of marine plants.

Answer 1

b
It may trap organisms and decrease sunlight below the water's surface.