1.

Which of the following statements is true? (i) Air presses from all sides on everyone and every thing (ii) Air is needed for burning. (iii) Air has no mass.

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


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