Question

what is the inner core of the earth composed of

Answer 1

it consists of iron Nickel alloy with some elements.

Answer 2

The earth inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the moon's radius.It is composed of an iron nickel alloy and some other elements. The temperature at the inner core's surface is approximately 5,700 K (5,430 °C), which is about the temperature at the surface of the sun.