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Why did heavy materials move inward in early Earth?

Answer and explanation

Correct answer: Due to difference in density

The governing concept is planetary differentiation. In its early molten or semi-molten stage, Earth was hot enough for materials to move and separate according to density. Dense substances, especially metallic materials such as iron and nickel, were pulled downward by gravity and concentrated toward the centre, while lighter silicate materials remained nearer the surface. Therefore, the correct answer is C, the difference in density. Light, rain and vegetation do not provide the physical mechanism for this large-scale internal separation. This process helped produce Earth’s layered structure, including the core, mantle and crust.

Related tags

GeographyEarth DifferentiationDensityPlanetary FormationStar FormationFormation Of PlanetsAnd Our Solar SystemStar Formation Formation Of Planets And Our Solar SystemThe Origin And Evolution Of The EarthClass 11 Mcq

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