A. CO2 of carbonic rocks
B. Atmospheric CO2
C. Fossil fuel
D. All of the above
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The correct answer to the question: "Which of the following serves as source of carbon in plants:" is "Atmospheric CO2".
A. CO2 of carbonic rocks
B. Atmospheric CO2
C. Fossil fuel
D. All of the above
The correct answer to the question: "Which of the following serves as source of carbon in plants:" is "Atmospheric CO2".
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