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Which part formed due to the accumulation of heavy metallic materials at Earth's centre?

Answer and explanation

Correct answer: Core

The governing concept is differentiation of the early Earth. When the young Earth was extremely hot and partly molten, materials separated according to density. Dense metallic elements, especially iron and nickel, moved downward under gravity and accumulated at the centre, forming the core. Lighter silicate materials remained above and contributed to the mantle and crust. Therefore, option D is correct. The crust is the thin outer rocky layer, the ocean is a water body rather than an internal metallic layer, and the atmosphere is the gaseous envelope. This density-based separation explains the broad layered structure of Earth.

Related tags

CoreMetallic MaterialsEarth DifferentiationEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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