For other people named Neville Chamberlain, see Neville Chamberlain (disambiguation). Arthur Neville Chamberlain, FRS (18 March 1869 â 9 November 1940) was a British Conservative politician who served as Prime Minister of the United Kingdom from May 1937 to May 1940.
From Wikipedia, the free encyclopedia. The outer core of the Earth is a liquid layer about 2,300 km (1,400 mi) thick and composed of iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.
Structure of the Interior of Earth. Earth has a diameter of about 12,756 km (7,972 mi). The Earth's interior consists of rock and metal. It is made up of four main layers: 1) the inner core: a solid metal core made up of nickel and iron (2440 km diameter). 2) the outer core: a liquid molten core of nickel and iron. 3) the mantle: dense and mostly solid silicate rock. 4) the crust: thin silicate rock material.