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Exercise 5. Answer the questions
                1. What was more valuable use of the rock peddled by the
           Indians?
                2. What was the first method of collecting the floating oil?
                3. Why was Edwin Drake  hired  by the Pennsylvania Rock
           Oil Company?
                4.  What  did  the  title  of  “colonel”  mean  for  people  in
           Titusville?
                5. What gave Drake the idea of making a casing for the well?
                6. Who and when noticed rich black petroleum in the hole?
                7. Had Colonel Drake’s idea paid off? How?









































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