inventing oxygen so you can breathe
Answer:
In the North American colonies, the importation of African slaves was directed mainly.
Explanation:Differentiate between the First and Second Atlantic slave systems ... merchants dominated the West African slave trade—supplying Spanish and Portuguese New ... Cotton did not become a major crop until after the American Revolution.
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The colonist believed they would be wealthy by the amount of land they owned
Answer: Elisha Graves Otis
Explanation: Elisha Graves Otis developed and invented the elevator which helped many who were handicapped. In developing the elevator, he also developed a safety device preventing elevators from falling if the hoisting cable has failed.
