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ppk ppk
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As the temperature of the air increases, what happens to the velocity of sound?  (Assume that all other factors remain constant.)
A) It increases.
B) It decreases.
C) It does not change.
D) It increases when atmospheric pressure is high and decreases when the pressure is low.
E) It increases when atmospheric pressure is low and decreases when the pressure is high.
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bio_manbio_man
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