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1. Which of the following is an example of an invention? A. Creation of more efficient train engine B. Creation of the telephone C. Discovering new ways to drill for oil D. The refining of crude oil 2. Which of the following was partly caused by social Darwinism? A. Creation of monopolies B. Creation of pro-labor groups C. Improved working conditions D. Long hours and low pay for workers 3. The development of the Bessemer Process contributed significantly to westward expansion. True False

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3) True
1) B. 3) True
2. C source: http://library.thinkquest.org/C004367/eh4.shtml

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sorry i mean 2 is D* typo

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