nothing
nothing
It is true that seismic waves from earthquakes allow us to interpret the structure of Earth's interior.
Because of the study of seismic waves from earthquakes
It got its inner structure by sucking your granpa's wrinkly dick
The boundaries of tectonic plates and the internal structure of the earth.
discontinuity
The earth has electric currents in its structure, that create magnetic fields.
no
Because it has layers.
The structure of Earth's interior affects seismic wave speed and direction differently at different boundaries. As P waves enter the mantle, they pick up speed until they enter the core, where the wave paths are bent sharply.
Inner Core
The speed of the waves that travel through the interior can tell the density of each layer of the Earth. Some waves can make it through certain layers, but not others.