Question

Which have scientists learned from studying seismic waves that travel through earth’s interior? A. The crust of earth is liquid. B. The layers of the earth increase in density as one moves toward the earth's center. C. There are no finite boundaries between the layers. They mesh into one another. D. The inner core of earth is liquid.

Answer 1

The correct answer that you are looking for would be B: The layers of the Earth increase in density as one moves toward the center of the Earth.
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