Which of the owing statements regarding the maintenance of carbon cycle in the biosphere are correct?
a. Plant utilize solar energy to convert $C O_{2}$ and water into cellular materials and produce oxygen that animals consume.
b. Oxygen produced by the plants during carbon assimilation is not a byproduct.
c. Energy used by an animal comes from the oxidation of plant material releasing $C O_{2}$ that escapes into the atmosphere.
d. All decaying organic matter on the earth is ultimately degraded by molds and bacteria to yield $C O_{2}$ that escapes into the atmosphere.
Select the correct answer.

Question

Which of the owing statements regarding the maintenance of carbon cycle in the biosphere are correct?
a. Plant utilize solar energy to convert

C O_{2}

and water into cellular materials and produce oxygen that animals consume.
b. Oxygen produced by the plants during carbon assimilation is not a byproduct.
c. Energy used by an animal comes from the oxidation of plant material releasing

C O_{2}

that escapes into the atmosphere.
d. All decaying organic matter on the earth is ultimately degraded by molds and bacteria to yield

C O_{2}

that escapes into the atmosphere.
Select the correct answer.

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