The correct answer among all the other choices is Steam locomotive. This is the transportation development that had the greatest long-term impact on the American economy. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:
if i remember correctly, they attacked settlements in retaliation.
appalachian plateau, valley and ridge, blue ridge, piedmont, and the coastal plain
Legislative Branch, Executive Branch, and Judicial Branch