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1. it refers to the highness and lowness of the frequency of the sound
a. pitch
b. wavelength
c. intensity
2. sound produced by vibarating object travels and waves called
a refraction
b rarefraction
c ligitude waves




Sagot :

Answer:

1. A) Pitch

2. B) Longitudinal waves

Explanation:

PITCH means the highness or lowness of the sound. Longitudinal waves are waves in which the vibration of the medium is parallel ("along") to the direction the wave travels and displacement of the medium is in the same (or opposite) direction of the wave propagation.