Seismic waves may reflect, but not diffract or refract, as they encounter different layers in Earth's interior.

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Seismic waves can diffract and refract as they encounter different layers with varying densities, velocities, and compositions in Earth's interior, which can cause them to change direction and speed. This phenomenon is what allows scientists to use seismic data to study the structure and composition of Earth's interior.

Seismic Waves May Reflect, but Not Diffract or Refract, as They