User talk:Olaleru24

THE CORE (Bary-sphere) At the center of the earth lies the core of radius 3475km, the outside of which contain liquid properties and the inner is assumed to contain solid properties which is 1225km in radius. The core contains two major minerals, Iron and nickel. It has more of iron than nickel, the combination is known as nife. The temperature in the core is believed to be 2200and 2750. Seismic measurements show that the core is divided into two parts, a "solid" inner core with a radius of ~1,2200km and a liquid outer core extending beyond it to a radius of ~3,400 km. The densities are between 9,900 and 12,200 kg/m3 in the outer core and 12,600–13,000 kg/m3 in the inner core. The inner core was discovered in 1936 by Inge Lehmann and is generally believed to be composed primarily of iron and some nickel.