Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. which of the following processes returns carbon from this vast reservoir to the active carbon cycle? burning fossil fuels sedimentation photosynthesis decomposition of dead organisms

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.