Layers of the Earth:
1. Crust: The Earth’s outer layer, divided into oceanic and continental crust, composed of solid rock.
2. Mantle: Located beneath the crust, it consists of semi-solid, hot rock, divided into upper and lower sections.

3. Core: The innermost layer:
– Outer Core: Molten iron and nickel in a liquid state.
– Inner Core: Solid ball of iron and nickel due to extreme pressure despite high temperatures.

These layers differ in composition and state of matter, contributing to the Earth’s structure and geological processes.