match the word to the definition (as noted in the carbon cycle lesson briefing). group of answer choices plants and algae play this role in the carbon cycle. [ choose ] describes how carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the earth. [ choose ] describes the amount of carbon dioxide, or equivalent greenhouse gas, caused by a person, organization, event, or product. [ choose ] carbon created by human activity.
