Final answer:
By studying seismic waves, scientists can learn about the interior structure of the Earth and gain insights into its composition and geological processes.
Step-by-step explanation:
By studying seismic waves, scientists can learn about the interior structure of the Earth. Seismic waves travel through the Earth and provide information about the different layers the waves have passed through. Scientists can use this data to construct a model of Earth's interior, showing both solid and liquid layers. This understanding of the Earth's interior helps scientists study the Earth's composition, its geological processes, and even predict the motion of tectonic plates.