Question

what is core if earth ​

Answer 1

Answer:

Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,220 km, which is about 20% of Earth's radius or 70% of the Moon's radius. There are no samples of Earth's core available for direct measurement, as there are for Earth's mantle.

Answer 2

Answer:

2 cores-

1. inner core- solid layer of the Earth, made of nickel and iron

2. outer core- liquid layer around the inner core of the Earth, made of nickel and iron