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A sound wave traveling eastward through air

causes the air molecules to

(1) vibrate east and west

(2) vibrate north and south

(3) move eastward, only

(4) move northward, only

Verified Answer :

TaylorBayley

1 - Vibrate east and west

Sound waves are longitudinal waves, that means the vibrations are parallel to the direction of energy transfer. If the energy transfer is going East, then the vibrations will be East and West creating compressions and rarefactions in the air.

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