Question

How do the materials of the three major compositional layers of Earth differ?

Answer 1

The Earth's three major layers are the crust, mantle, and core, which differ in composition with the crust rich in silicon and aluminum oxides, the ultramafic mantle having more iron and magnesium, and the core mostly containing iron and nickel.

Step-by-step explanation:

The materials of the three major compositional layers of Earth differ significantly in their chemical makeup. The crust, which represents the Earth's surface, is mostly composed of silicon oxide and aluminum oxide, with continental crust being thicker and less dense compared to oceanic crust. The mantle is the layer beneath the crust, characterized by an ultramafic composition that includes more iron, magnesium, less aluminum, and somewhat less silicon than the crust. It is the thickest of Earth's layers, roughly 2,900 km. The core is the final and deepest layer, mainly made up of iron and nickel, and spans about 3,500 km in thickness.

Answer 2

I believe the inner and outer core is a hot liquid, the mantle is a sort of hard, solid rock, and the crust is weaker but solid as well.