Answer :
Final answer:
Compressions and rarefactions are the key components of a sound wave, with compressions being denser areas and rarefactions being less dense regions.
Explanation:
Compressions are the denser areas in a sound wave where the medium is compressed, while rarefactions are the less dense regions where the medium is spread out. In a longitudinal sound wave, compressions are analogous to crests in a transverse wave, and rarefactions are analogous to troughs.
Learn more about Sound Waves here:
https://brainly.com/question/11797560
