yinchit766 yinchit766

17-03-2018
Geography

contestada

Billy tapped the ruler and it made a funny noise. Billy heard the sound because the ruler vibrated ____________ molecules back and forth.
A) the air
B) his ear
C) the table
D) his finger

Respuesta :

brainiac112 brainiac112

17-03-2018

A. the air. All the other choices don't make sense.

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smith41649 smith41649

17-03-2018

A. The air hope this helps you

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