ThseMoErmdin ThseMoErmdin

23-02-2017
Biology

contestada

My test is timed PLse answer
What is the basis of all sounds?
A.Vibrating molecules in the air
B.wave cycles
C.nodes
D.waveforms

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elizabethhart9 elizabethhart9

23-02-2017

i wanna say the answer is a

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