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Questions and Answers
What is the outermost layer of the Earth's internal structure?
What is the outermost layer of the Earth's internal structure?
- Outer silicate solid crust (correct)
- Liquid outer core
- Solid inner core
- Highly viscous asthenosphere
What generates the Earth's magnetic field?
What generates the Earth's magnetic field?
- Liquid outer core (correct)
- Outer silicate solid crust
- Solid inner core
- Highly viscous asthenosphere
How is the scientific understanding of the Earth's internal structure based?
How is the scientific understanding of the Earth's internal structure based?
- Measurements of the force exerted by Earth's gravity
- Observations of topography and bathymetry (correct)
- Analysis of the gravitational and magnetic fields of Earth
- Observations of the Earth's atmosphere
How is Earth's mass calculated?
How is Earth's mass calculated?
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What is the average density of Earth?
What is the average density of Earth?
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Study Notes
Earth's Internal Structure
- The outermost layer of the Earth's internal structure is the Crust.
- The Earth's magnetic field is generated by the movement of molten iron in the Earth's outer core.
Scientific Understanding of Earth's Internal Structure
- The scientific understanding of the Earth's internal structure is based on seismic data, which is obtained from the analysis of seismic waves generated by earthquakes.
Earth's Mass and Density
- Earth's mass is calculated by scientists using a combination of gravitational measurements, seismology, and laser ranging of satellites.
- The average density of Earth is approximately 5.5 grams per cubic centimeter (g/cm³).
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