10 Questions
What is the composition of the middle mantle or Asthenosphere?
Fluid, with the lithosphere floating on it
What are the two main components of the core of the Earth?
External core (probably liquid) and internal solid core
What is the main material that the core of the Earth is rich in?
Nickel and Iron
What is the range of density for the core of the Earth?
Between 9 and 12
How does the temperature change as you move towards the center of the Earth?
Increases
What are the three sources that contribute to changes in temperature inside the Earth?
Solar radiation, in-depth radioactivity, initial heat from solar origin
What is the geothermal gradient for the Earth?
1°C per ~33m
In which regions does the geothermal gradient reach 100m for a 1°C rise in temperature?
Metallic fields (gisements)
What is the probable state of the external core of the Earth?
Probably liquid
What causes the Earth's magnetic field?
Liquid metallic material in the core
Test your knowledge on the structure, composition, dimensions and position of Earth in the solar system. Explore topics ranging from external envelopes to internal and external composition of the planet.
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