Sagot :
{"CHOICES"}
A. by containing their vibrations
B. by passing the vibrations to the air
C. by absorbing vibrations from the air
D. by passing the sound through its materials
{"ANSWER"}
B. by passing the vibrations to the air
{"CHOICES"}
A. by containing their vibrations
B. by passing the vibrations to the air
C. by absorbing vibrations from the air
D. by passing the sound through its materials
{"ANSWER"}
B. by passing the vibrations to the air