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Difficulty: EasyInternal and External Structure of the Earth

Arrange the major internal layers of the Earth in order from the outermost surface to the innermost center.

  1. 1Crust
  2. 2Mantle
  3. 3Outer Core
  4. 4Inner Core

Answer

The correct order from the surface to the center is: Crust, Mantle, Outer Core, Inner Core.
Moving from the Earth's exterior inward to its center, one traverses the Crust (outer shell), the Mantle (middle layer), the Outer Core (liquid metallic layer), and finally the Inner Core (solid center).

Step-by-Step Solution

1
Identify the outermost layer of the Earth.
The Crust forms the surface layer.
It is the top structural zone of the Earth.
2
Determine the layer immediately beneath the Crust.
The Mantle extends beneath the Crust.
It occupies the region between the crust and core.
3
Order the sub-layers of the core by depth.
The liquid Outer Core comes before the solid Inner Core.
The Outer Core surrounds the central solid Inner Core.

Key Concept

Internal Structure of the Earth
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Topics

Internal and External Structure of the Earth

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