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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.
The Tulsa metropolitan area is the economic engine of the Green Country as well as Eastern Oklahoma. In 2017 the Tulsa metropolitan area's GDP was $57.7 billion, [18] up from 43.4 billion in 2009, nearly thirty percent of Oklahoma's economy, and the 53rd largest in the nation. [19]
The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, United States, on April 19, 1995, the second anniversary of the end to the Waco siege. The bombing remains the deadliest act of domestic terrorism in U.S. history.