Indeed correct, and the reason is because it’s efficient, has no nuclear waste etc.
Answer:
Photosynthesis and Respiration
Explanation:
In photosynthesis C is used in the form of CO2.
In respiration C is released in the form of CO2.
Bacteria mostly act as "Decomposer" 'cause they decompose the dead & decaying matter, back into inorganic materials.
Hope this helps!