Question: is the center of the earth lava? or something else

Kate Winfield answered on 14 Nov 2019:

The Earth’s core is broken up into two distinct regions (the inner core and the outer core). The inner core is a sphere of solid metal that measures about 2,440 km across. It’s believed to be comprised of 80% iron and 20% nickel. Surrounding this solid inner core is an outer core of liquid metal that extends for approximately another 2,000 km.