Loudness is ___ in dry air than in moist air which is lighter.

1.	Loudness is ___ in dry air than in moist air which is lighter.
A.	less
B.	more
C.	sometimes (a) , sometimes (b)
D.	none
Answer» C. sometimes (a) , sometimes (b)

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Loudness is ___ in dry air than in moist air which is lighter.

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