In the center of the Earth is the Earth's core, which is therefore the innermost layer of the Earth. The next layer is the mantle and above the mantle is a layer called the Earth's crust. To study the Earth's interior, scientists use seismic waves that transport energy released during an earthquake. These waves do not travel through the interior of the Earth in straight paths but are reflected from the boundaries of different layers, refracted, ie change direction when passing from one layer to another, and diffracted, ie follow the curved line around some obstacles encountered while traveling .
Recommended textbook solutions
More related questions