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Q: An elastic wave generated by an impulse such as an earthquake or an explosion is called ____.
  • A. sound wave
  • B. epicentre
  • C. tectonic shift
  • D. seismic wave
Correct Answer: Option D - A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface or through the earth's interior (P and S wave).
D. A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface or through the earth's interior (P and S wave).

Explanations:

A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface or through the earth's interior (P and S wave).