Why cant you get direct information about interior of earth?

Answer 1

Direct information about the Earth's interior is inaccessible due to the extreme conditions of temperature and pressure that increase with depth, making it impossible to send instruments or human explorers beyond a few kilometers into the crust. Instead, scientists rely on indirect methods such as seismic wave analysis, which provides insights into the Earth's structure based on how these waves travel through different materials. Additionally, the study of volcanic materials and meteorites offers clues about the composition of the Earth's interior.