The best and most correct answer among the choices provided by your question is the second choice which is "railroad tracks."
<span>By 1860 the Midwest and the East were united by a network of railroad tracks.</span>
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Answer:
What was traded on the trans Saharan trade?
Explanation:
The West Africans exchanged their local products like gold, ivory, salt and cloth, for North African goods such as horses, books, swords and chain mail. This trade (called the trans-Saharan trade because it crossed the Sahara desert) also included slaves. ... Slaves would be taken to southern Spain as household servants.
Answer:
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