Describe how the composition of the earth's layers changes with depth.

Question: Describe how the composition of the earth's layers changes with depth.

The Earth's layers change significantly in composition and physical state with depth. The outermost layer, the crust, is composed mainly of lighter silicate minerals like basalt and granite. Beneath the crust lies the mantle, which is rich in iron and magnesium silicates and becomes denser and more ductile with depth. The outer core, composed of liquid iron and nickel, generates the Earth's magnetic field. Finally, the inner core, despite its extremely high temperatures, remains solid due to immense pressure and is primarily made of iron and nickel. As you go deeper, both density and pressure increase, influencing the behavior and state of these materials.

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