Question

which features do sound waves have that ocean and light waves do not? check all that apply. compressions rarefactions amplitude wavelength crests frequency speed

Explanation:

1. Sound waves are longitudinal waves, which consist of compressions (regions of high pressure) and rarefactions (regions of low pressure). Ocean waves are transverse (with crests/troughs) and light waves are electromagnetic (transverse, no compressions/rarefactions).
2. Amplitude, wavelength, frequency, and speed are properties shared by sound, ocean, and light waves. Crests are a feature of transverse waves (ocean, light) but not longitudinal sound waves. So compressions and rarefactions are unique to sound waves here.

Answer:

A. compressions, B. rarefactions