Which of the following is the source of carbon to plants – McqOptions

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1.	Which of the following is the source of carbon to plants
A.	Atmospheric \[C{{O}_{2}}\]
B.	\[C{{O}_{2}}\]of carbonate rocks
C.	Fossils
D.	All the above
Answer» B. \[C{{O}_{2}}\]of carbonate rocks

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