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Questions and Answers
What is the average thickness of the Earth's crust?
What is the average thickness of the Earth's crust?
- Varies from oceanic to continental crust (correct)
- 100 kilometers
- 10 kilometers
- 1000 kilometers
What do seismic discontinuities indicate?
What do seismic discontinuities indicate?
- Changes in the composition or physical state of materials (correct)
- The presence of water in the Earth's interior
- The movement of tectonic plates
- Changes in the temperature of the Earth's layers
How is the internal structure of the Earth characterized?
How is the internal structure of the Earth characterized?
- Layered (spherical shells) (correct)
- Homogeneous throughout
- Solid and continuous
- Chaotic and unstructured
Which type of wave was used to discover seismic discontinuities?
Which type of wave was used to discover seismic discontinuities?
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What do major discontinuities in the Earth's interior include?
What do major discontinuities in the Earth's interior include?
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