1.

The gas released in photosynthesis is

A.                 Pure\[C{{O}_{2}}\] 
B.                 Pure\[{{O}_{2}}\]
C.                 Mainly\[C{{O}_{2}}\]             
D.                 Mainly\[{{O}_{2}}\]
Answer» C.                 Mainly\[C{{O}_{2}}\]             


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