1.

Oxygen is needed in which process? (i) Respiration   (ii) Burning  (iii) Photosynthesis

A.  (i), and (iii)   
B.  (ii), and (iii) 
C.     Only (ii) and (iii)  
D.  (i), (ii), and (iii)
Answer» D.  (i), (ii), and (iii)


Discussion

No Comment Found