Question

the speed of sound depends on the elasticity and density of the ________ through which it is travelling air medium ears wavelengths

Explanation:

Sound is a mechanical wave that requires a medium (such as solid, liquid, or gas) to travel. The speed formula \(v = \sqrt{\frac{B}{
ho}}\) (where \(B\) is the bulk modulus - related to elasticity and \(
ho\) is density) shows its dependence on medium properties. Air is just one type of medium. Ears are for hearing sound, not related to its speed - determining factors. Wavelengths (\(\lambda\)) are related to sound's frequency (\(f\)) and speed (\(v\)) by \(v = f\lambda\), but wavelength itself doesn't determine speed. The general term is medium.

Answer:

medium