Question

How did scientist use seismographs to determine the construction of the interior of the earth?

Answer 1

Seismographs use their power to look inside the earth therefore bam scientist know knows about interior earth

Answer 2

Scientists are able to understand Earth's interior by studying seismic waves.

Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.