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→Composition of Earth
*[[Inner Core]]: Underneath the [[Outer Core]] is the [[Inner Core]] at the very centre of [[Earth]]. It is a [[solid]] [[sphere]].
===Composition of the Earth===
The different layers of [[Earth]] are made of different materials.
*[[Crust]] - The most common chemical elements in the [[Crust]] are [[Oxygen]] (46.6%), [[Silicon]] (27.7%), [[Aluminum]] (8.1%), [[Iron]] (5.0%), [[Calcium]] (3.6%).