Will give brainliest! Which statement is TRUE?

1)Light waves always travel at a constant speed, but sound waves do not.

2)Waves travel at different speeds through different materials.

3)Wave speed depends on the amplitude of the wave.

4)Light waves and sound waves travel at the same constant speed.

C. Is correct

Explanation:

For a sound wave it depends on how much compression the loud speaker or musical instrument creates.  In other words, it depends on the energy the source put into the wave. It does not depend on frequency, wavelength, or velocity.

b

explanation:

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.