Respuesta :
A seismograph measures and records seismic waves that move through the earth as the result of an earthquake. Based on that i would say the depth and density of the earths layers
The correct answer is the depth and density of the Earth's layer.
An instrument used for measuring seismic or earthquake waves is known as a seismograph. They are held in a very solid alignment, either on a concrete base or on the bedrock. The seismograph itself comprises a frame and a mass, which can move comparatively to it.
A seismograph records and measures seismic waves, which move through the Earth as a consequence of an earthquake. Thus, it can provide information on the depth and density of the Earth's layers.
