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.
Earth's core has two parts, a solid iron inner core and a molten outer core, which is composed of a nickel-iron alloy. The outer core begins about 1,800 miles under the crust.