The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.
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A. commodity
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c. both gave President Lyndon Johnson wide latitude to escalate the conflict, and called for 250,000 U.S. combat troops to be sent to Vietnam.
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Darwinism came up with the idea of natural selection.
