Structure of Earth

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Layers of the Earth[change | change source]

  • crust - is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite.
  • Mantle -  is a layer inside a planetary body bounded below by a core and above by a crust.
  • Outer core -  is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth's solid
  • The inner core -  is the innermost geologic layer of the planet Earth.
  • Mass - The force exerted by Earth's gravity can be used to calculate