We derive our primary estimate of the temperature of the deep earth from the melting behavior of iron at ultrahigh pressures. We know that the earth's core depths from 2,886 kilometers to the center at 6,371 kilometers (1,794 to 3,960 miles), is predominantly iron, with some contaminants.
Greater Cleveland-Akron ranks 16th for population, largest metro area in Ohio. CLEVELAND, Ohio - Although the eight-county Cleveland-Akron metro area lost an estimated 54,000 people from 2000 through 2009, it is still the largest metro area in Ohio, and the 16th largest nationally. Here are the biggest combined metropolitan areas in Ohio, along with their national ranks and populations. 16: Cleveland/Akron/Elyria, 2,891,988
Akron is the fifth-largest city in the U.S. state of Ohio and is the county seat of Summit County. It is located on the western edge of the Glaciated Allegheny Plateau, approximately 39 miles south of Lake Erie. As of the 2015 Census Estimate, the city proper had a total population of 197,542, making it the 119th largest city in the United States. The Akron, OH Metropolitan Statistical Area covers Summit and Portage counties, and in 2010 had a population of 703,200. It is also part of the larger