Answer:
Seismic waves
Step-by-step explanation:
Scientists study earth's interior using seismic waves. These waves are produced during an earthquake.
- The waves have very unique properties that makes them useful for studying the subsurface.
- Two types of seismic waves are predominantly used.
- P -waves are the primary waves that passes through any medium
- S -waves are the secondary waves that passes only through solids
- Using these properties, scientists can study the earth's interior.