The oil spill affected the water cycle by creating toxic rainfalls that can kill more animals. In all there were about 114,065 animals hurt or killed in the B.P oil spill.
The oil spill affected the carbon cycle because if plankton which would have gone through the process of photosynthesis which would have made energy which would then be used but since so much of the plankton was killed there was not enough carbon (that came from the waste of the plankton) entering the cycle. The oil spill affected the nitrogen cycle by releasing too much nitrogen in the oil for the bacteria to convert into usable portions. Yes, it added carbon dioxide because when the oil was burned it released the fossil fuels that are in oil. The troposphere was most affected by the oil spill because it is the layer we live on and that is where the accident occurred.