Question

Which example best illustrates a method to show differences among Earth’s layers?

Carson models how the continental crust varies in thickness.
Marisol records atmospheric and oceanic temperatures at several beaches.
Eliza analyzes seismic wave activity from an earthquake using a computer model.
Oscar determines the pressure at different depths of Earth’s crust.

Answer 1

Eliza.

Seismic waves from earthquakes are the primary method scientists use to map Earth’s internal layers: their speeds and paths change at boundaries (e.g., the Moho, mantle/core) and S-wave shadowing reveals the liquid outer core. The other choices measure only surface or crustal properties.