What kind of indirect evidence do geologists use to study the structure of earth?
Meteorites which are sometimes remnants of exploded planets reveal what the inner layers may consist of. Also of use in inferring the structure of Earth are the responses of seismic waves as they travel through the Earth and are recorded by scientific instruments. Mathematical calculations of Earth’s density and its relation to our gravitational effects on the surrounding celestial bodies also plays a part in determing composition. And finally, the study of the magnetosphere, the magnetic field around the Earth which blocks harmful solar radiation, reveals the structure and interplay of the inner and outer core.
