Knowledge of Earthʹs interior is mostly derived from
A)direct sampling of the interior using deep-test wells.
B)historic and prehistoric records.
C)indirect evidence involving the analysis of seismic waves.
D)work in Earthʹs deepest caverns and caves.

Question

Quizplus · Accepted Answer

Indirect evidence involving the analysis of seismic waves is the most common method for studying Earth's interior. This includes analyzing the behavior of seismic waves as they pass through the different layers of Earth, which provides information about the density, temperature, pressure, and composition of these layers. Direct sampling of the interior using deep-test wells is possible in some cases, but it is much less common and provides limited information compared to seismic studies. Historic and prehistoric records do not provide any direct information about the interior of Earth. Work in Earth's deepest caverns and caves is also not a reliable method for studying the interior of the planet.

Knowledge of Earthʹs Interior Is Mostly Derived from