Answer:
where are the descriptions?
Explanation:
Driven in part by economic concerns, and in part by frustration with the straitened social conditions of the South, in the 1870s African Americans began moving North and West in great numbers. In the 1890s, the number of African Americans moving to the Northeast and the Midwest was double that of the previous decade.
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Answer: Petroleum.
Reason: Petroleum could be turned into kerosene which was used in stoves and lamps.
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