GENERAL GEOLOGY

Detailed explanation-1: -The core is made of two layers: the outer core, which borders the mantle, and the inner core. The boundary separating these regions is called the Bullen discontinuity. The outer core, about 2, 200 kilometers (1, 367 miles) thick, is mostly composed of liquid iron and nickel.

Detailed explanation-2: -5 In the center of Earth is the core, consisting of two layers: the inner and outer core. The entire iron and nickel core is extremely hot, so it is not surprising to learn that the outer core is in a molten state. However, the inner core’s iron and nickel are solid.

Detailed explanation-3: -The Earth’s outer core is the second innermost layer, located between the inner core and the mantle. It contains mostly iron and nickel, which-due to lower pressure than existing at the inner core-are in the liquid form.

Detailed explanation-4: -The core is the centre of the earth and is made up of two parts: the liquid outer core and solid inner core. The outer core is made of nickel, iron and molten rock.

Detailed explanation-5: -Scientists believe that the inner core is the hottest layer of the Earth, that it is composed mostly of iron and nickel, and that although it is hot enough to be a liquid, it acts as a solid because of the immense amount of pressure on it.