Which of the following contributes/does carbon dioxide to the carbon c – McqOptions

MCQOPTIONS

1.	Which of the following contributes/does carbon dioxide to the carbon cycle on planet Earth? 1. Volcanic action 2. Respiration 3. Photosynthesis 4. Decay of organic matter Select the correct answer using the code given below
A.	1,2,3 and 4
B.	1,2 and 4 only
C.	only 2
D.	1 and 3 only
Answer» C. only 2

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