GEOLOGY

Detailed explanation-1: -The Earth is divided into three main layers. The dense, hot inner core (yellow), the molten outer core (orange), the mantle (red), and the thin crust (brown), which supports all life in the known universe. Earth’s core is the very hot, very dense center of our planet.

Detailed explanation-2: -Earth’s core consists of a solid iron-nickel ball rotating within a layer of liquid metal.

Detailed explanation-3: -Innermost layer of the earth is called the core. Its radius is approximately 3500 km.