Do compression and rarefactions in sound wave travel in same directions or in opposite directions ? Explain.

Explanation

1) Compressions and rarefactions in a wave will be in opposite direction.
2) In a compression, all the particles come close, so the density and pressure increases.
3) In a rarefactions, all particles drag back, so the density and pressure decreases.
4) In a microscopic view of particles, the compression and rarefaction travel in opposite directions.