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What is the innermost layer of the Earth primarily made of?
  • a)
    Rocks and Minerals
  • b)
    Silica and Magnesium
  • c)
    Nickel and Iron
  • d)
    Silica and Alumina
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
What is the innermost layer of the Earth primarily made of?a)Rocks and...
The innermost layer of the Earth, called the core, is mainly made up of nickel and iron. This core is very hot and under a lot of pressure. It's like a big ball of metal deep inside the Earth!
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Most Upvoted Answer
What is the innermost layer of the Earth primarily made of?a)Rocks and...
Composition of the Innermost Layer of the Earth
The innermost layer of the Earth, known as the inner core, is primarily made up of nickel and iron. This layer is solid and is located beneath the outer core. The inner core is believed to have a temperature of around 5,700°C to 6,000°C.

Formation of the Inner Core
- The inner core is formed from the solidification of the outer core, which is primarily composed of molten iron and nickel.
- As the Earth's core cools over time, the molten materials in the outer core start to solidify, forming the solid inner core.

Importance of Nickel and Iron
- Nickel and iron are the main components of the inner core due to their high densities.
- The presence of these heavy metals contributes to the overall density of the inner core, making it denser than the outer core.

Role of Nickel and Iron in Earth's Magnetic Field
- The presence of nickel and iron in the inner core is also crucial for the generation of Earth's magnetic field.
- The movement of molten iron in the outer core, driven by heat from the inner core, generates electric currents that produce the Earth's magnetic field.
In conclusion, the innermost layer of the Earth, the inner core, is primarily composed of nickel and iron. These elements play a significant role in the structure, composition, and magnetic properties of our planet.
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What is the innermost layer of the Earth primarily made of?a)Rocks and Mineralsb)Silica and Magnesiumc)Nickel and Irond)Silica and AluminaCorrect answer is option 'C'. Can you explain this answer?
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