Question

24. How do seismic waves help scientists understand Earth's layers?

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Scientists can generate seismic waves in order to observe their paths through Earth.
Scientists can observe how seismic waves multiply when passing through different layers.
Scientists can observe which seismic waves change the composition of the layers they pass through.
Scientists can observe which seismic waves cannot pass through certain layers.

Answer 1

[AI-generated answer — Bot GPT 3.5]

All of the above statements are correct. Seismic waves, generated by earthquakes or man-made explosions, can provide valuable information about the structure and composition of Earth's layers. By observing the paths of seismic waves, scientists can determine how they are refracted or reflected as they pass through different layers. This helps scientists understand the boundaries between these layers and can provide insight into the density, temperature, and composition variations within each layer. Additionally, the behavior of seismic waves can provide information about the presence of certain materials, such as liquids or solid structures, within the layers. Overall, seismic waves are a crucial tool for scientists to study and understand the Earth's internal structure.