Final answer:
Respiration is the main process through which carbon is released back into the atmosphere.
Explanation:
Respiration is a process in which carbon is released back into the atmosphere through cellular respiration in living organisms.
Living organisms release carbon dioxide as a byproduct of cellular respiration. Additionally, carbon is released into the atmosphere when fossil fuels are burned.
Learn more about Carbon cycle here:
https://brainly.com/question/30508567
