Which of the following is the best example of one way carbon progresses through the carbon
cycle?
A. Humans take in carbon dioxide and give off
carbon dioxide through respiration.
B. Marine organisms transform carbohydrates from
the atmosphere into carbon gas.
C. Fungi take in carbohydrates as nutrients and
release oxygen into the atmosphere.
D. Plants take in carbon dioxide and turn it into
carbohydrates during photosynthesis.