D is the answer to the question
to be honest me neither dude
The answer is B . two atoms exchange electrons and become ions
The biogeochemical cycle in which carbon is exchanged between Earth's terrestrial biosphere, hydrosphere, geosphere, and atmosphere is called the carbon cycle. The global carbon budget is the balance of the fluxes of carbon between these four reservoirs.
Ground my dude! wanna know how I know! I checked the other answers on the other one :)
