Question

11. How do seismic waves help scientists determine the structures of Earth's interior?

Seismic waves activate the Earth's magnetic field.
Seismic waves carry materials from Earth's mantle across the Earth and to the surface.
Seismic waves travel through different materials at different speeds.
Seismic waves travel through meteorite remains at different speeds.

Answer 1

Seismic waves travel through different materials at different speeds, allowing scientists to determine the structures of Earth's interior by monitoring the seismic waves in different locations.

Step-by-step explanation:

Seismic waves help scientists determine the structures of Earth's interior by traveling through different materials at different speeds. As seismic waves pass through the layers of the Earth, they experience refraction, similar to light waves passing through lenses. By monitoring the seismic waves in different locations, scientists can learn about the layers the waves have traveled through, revealing the composition and structure of Earth's interior. Seismic imaging, similar to ultrasound imaging, allows scientists to construct a model of Earth's interior, showing the presence of liquid and solid layers.