In a sound wave, the disturbance and the energy move in a perpendicular direction: C. perpendicular.
A wave can be defined as a disturbance in a medium that progressively transports energy from a source location to another location, without the transportation of matter.
Similarly, a sound wave is an example of a mechanical wave because it requires a medium for its propagation and it creates a disturbance and the energy is transported in a perpendicular direction.
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