Question
Explain, how the geoscientists study the structure and composition of Earth's interior. Add a note on the internal structure of the Earth.
Answer :
Word Count : 517
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Geoscientists study the structure and composition of the Earth's interior using a combination of indirect and direct methods, as the Earth’s deeper layers are not accessible for direct observation. One of the primary tools used is seismology, which involves the study of seismic waves generated by earthquakes or artificial sources. Seismic waves travel through different materials at different speeds, and by analyzing their travel times, refraction, reflection, and attenuation, geoscientists can infer the properties of the Earth's interior layers. P-waves (primary waves) travel through solids, liquids, and gases, while S-waves (secondary waves) can only travel through solids. The absence of S-wave transmission through certain regions indicates the presence of liquid layers, such as the outer core. Seismographs around the world record these waves, allowing
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