In which of the following processes is oxygen used up? (i) burning (ii) respiration (iii) photosynthesis

In which of the following processes is oxygen used up? (i) burning �

1.	In which of the following processes is oxygen used up? (i) burning (ii) respiration (iii) photosynthesis
A.	Only (i) and (ii)
B.	Only (ii) and (iii)
C.	Only (i) and (iii)
D.	(i), (ii) and (iii)
Answer» B. Only (ii) and (iii)