In the carbon cycle, what form of carbon do producers take in from the atmosphere to preform photosynthesis? A. Carbohydrates

B. CO2

C. Protein

D. Solid carbon

E. Water

Option B

Explanation:

Producers take in carbon in the form of CO2 from atmosphere to perform photosynthesis clear from the photosynthesis reaction:

Water + CO2 =>  Food + Oxygen + Energy

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.