asked 176k views
4 votes
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

2 Answers

4 votes
A. The air hope this helps you
6 votes
A. the air. All the other choices don't make sense.
answered
User Abeln
by
8.4k points
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