Which of the following is true about air? (i) Air is a mixture of seve – McqOptions

MCQOPTIONS

1.	Which of the following is true about air? (i) Air is a mixture of several gases. (ii) Air exerts pressure. (iii) The composition of air is constant in all places.
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)

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