<em>Seismologists are Earth scientists that study the origin and propagation of seismic waves in geological materials</em> (from small samples to the Earth), they also study the earthquake's results (tsunamis, landslides, etc) and <em>can predict where major earthquakes are likely to occur based on their observations.</em>
Seismologists use seismographs as their most important tool because they collect and record the vibrations of Earth.
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I believe it’s the sun As the sun gives nutrients to the plant Plant gets satin by animal Animal gets eaten by animal and so on and the nutrients would be passed on
