What makes up a sound wave as it travels through the air?

Sound waves traveling through air are indeed longitudinal waves with compressions and rarefactions. As sound passes through air (or any fluid medium), the particles of air do not vibrate in a transverse manner. Do not be misled - sound waves traveling through air are longitudinal waves.

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political parties perform an important task in government. they bring people together to achieve control of the government, develop policies favorable to their interests or the groups that support them, and organize and persuade voters to elect their candidates to office.

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