The interior of the Earth and methods to study it

Methods employed to find India's layers: Doting holes, Bdrols, magnetic anomaly, study volcanic deeps, study seismic study, deep trench. Seismic investigation has significantly contributed to our understanding.

Studying of seismic waves has helped us map the interior of Earth. Body waves consist of Primary and Secondary wave. Lonsitity of primary and secondary waves are wave, have certain properties that were united: They have diffener speed on different medium, They have different speed in different densito.

They Seaondary waves among more through liquid. The study of speed of waves on seismograph was used to establish the different densities within Earth. The analysis of different shadow area i.e. where seismic activity is not allowed was used to determine that shadow area is where core was and inner core was solid (among in shadow region of P waves). The study of seismic activity also helped us map the history and future of the Earth sub continent. Future energy is required to save the world from the disaster of Earth quakes.