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The innermost layer of the Earth is mainly made up of
  • a)
    Silica and Iron
  • b)
    Nickel and Alumina
  • c)
    Silica and Alumina
  • d)
    Nickel and Iron
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The innermost layer of the Earth is mainly made up ofa)Silica and Iron...
The Earth is divided into four main layers: the solid crust on the outside, the mantle, the outer core, and the inner core.
Important Points
The Core -
  • The earthquake wave velocities helped in understanding the existence of the core of the earth.
  • The core-mantle boundary is located at the depth of 2,900 km.
  • The outer core is in a liquid state while the inner core is in a solid state.
  • The density of material at the mantle core boundary is around 5 g/cm3 and at the centre of the earth at 6,300 km, the density value is approximately 13g/cm3.
  • The core is made up of very heavy material mainly constituted by nickel and iron.
  • It is sometimes referred to as the nife layer.
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The innermost layer of the Earth is mainly made up ofa)Silica and Ironb)Nickel and Aluminac)Silica and Aluminad)Nickel and IronCorrect answer is option 'D'. Can you explain this answer?
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