Question

2 what do the sound waves from a lions roar and a mouses squeak have in common?
a speed
b volume
c frequency
d amplitude

Explanation:

Sound waves' speed in the same medium (like air) is constant, regardless of the sound source (lion's roar or mouse's squeak). Volume relates to amplitude (loudness), and a lion's roar is louder (higher amplitude/volume) than a mouse's squeak. Frequency (pitch) differs (lion's roar is lower - pitched, mouse's squeak higher - pitched). So speed is common.

Answer:

A. Speed