Greatest compression and greatest density
Explanation:
Position A depicts an area showing the greatest compression and greatest density.
This is typical of a longitudinal wave.
A longitudinal wave is a wave that is parallel to its source. It is made up of series of compression and rarefaction.
The place where the particles are closest together are called the compression as shown by A. They have the greatest compression and greatest density.
The other place with sparse particles are the rarefaction, they have the least compression and density.
learn more:
Sound waves brainly.com/question/3619541
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