Question

How was the layered structure of Earth developed?​

Answer 1

$\rightarrow$Basically the Earth is layered because of gravity. The earth formed in the molten state. The liquid iron which is very dense fell to the center. The Earth's mantle is made up of low silica compositions (around 40% silica) and that is _denser_ than the high silica stuff that makes up the continental crust.

Answer 2

Basically the Earth is layered because of gravity. The earth formed in the molten state. The liquid iron which is very dense fell to the center. ... The Earth's mantle is made up of low silica compositions (around 40% silica) and that is _denser_ than the high silica stuff that makes up the continental crust .

Earth formed about 4.6 billion years ago during the birth of our solar system. ... During the next major phase of earth's formation cooling and differentiation of the Earth's layers occurred. Dense materials sank to the center, forming an iron-nickel rich core. Lighter buoyant silicate-rich magma rose to the surface.