Earth´s inner core and outer core are both made of an iron-nickel alloy. The state of matter (solid, liquid or gas) of a given material depends on its temperature and pressure. ... Although the inner core is very hot, it is solid because it is experiencing very high pressure.
As it is made of dense, or heavy, materials such as iron and nickel, the inner core is solid.
The Earth is divided into three layers: the crust, the mantle, and the core. This is the earth's outer layer, and it is composed primarily of solid rock, primarily basalt and granite.
Oceanic crust and continental crust are the 2 kinds of crust. The oceanic crust is denser and thinner, and it is mostly made up of basalt. Continental crust is denser, thicker, and mostly made up of granite.
The mantle is a hot, thick, iron and magnesium-rich solid rock that lies beneath the crust.
The Earth's core is divided into two parts: the molten outer core and the solid inner core. Nickel, iron, and molten rock make up the outer core.
Thus, due to these minerals, the inner core of the Earth is solid.
For more details regarding Earth's structure, visit:
https://brainly.com/question/2669333
#SPJ2
