Layers of the earth
Earth and its layers Earth comprises four separate layers. Most of the geologist believes that as the Earth cooled, the heavier and the denser material sank into the centre, and the lighter ones rose towards the top. Due to this, the outermost layer is made of the lightest materials such as rocks and granites and the innermost layer consists of nickel and iron. Let’s discuss different layers of earth. Different Layers of the Earth The inner core, the outer core, mantle and crust are the four layers of earth The Inner Core It is the centre and the hottest layer of the Earth. The inner core is solid and made up of iron and nickel with temperature up to 5,500 o C. Due to its immense heat energy , the inner core is more like the engine room of the Earth. The Outer Core The outer core of the Earth is similar to a very hot ball of metals, whose temperature is around 4000 o F to 9000 0 F. It is so hot that the me...