Explain the importance of new inventions, railroads, and clipper ships to the northern economy. support each of your main ideas with at least one fact or example.

organize your thoughts. answer in paragraph format. be sure you start with a topic sentence. (restating the question in your answer is a good ) have at least three-four supporting detail sentences. end your paragraph with a summary or conclusion sentence.

this is the american nation history book chapter 14 about the north and south
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