Structure of earth’s interior is fundamentally divided into three layers – crust, mantle and core.

What are the 3 internal structures of the Earth?

​​The earth is made up of three different layers: the crust, the mantle and the core.

What is Earth's internal chemical structure?

Earth has three main geological layers based on chemical composition – crust, mantle, and core. The outermost layer is the crust and is composed of mostly silicon, oxygen, aluminum, iron, and magnesium. There are two types of crust, continental and oceanic crust.