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OpenStudy (anonymous):
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
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OpenStudy (dmcdowell):
B
OpenStudy (dangerousjesse):
And why is that an invention? :)
OpenStudy (dmcdowell):
because it was the first one made.... A say created a MORE efficeint one.... C is just a new way of doing something and D is not an invention
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