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24. there were several causes for the christian crusades. there were also many effects from the crusades. explain these causes and effects of the christian crusades. (you should write using complete sentences. try and explain at least 2 causes and 2 effects of the crusades.) *

Which options most accurately assess the impact of transportation improvements (e. g., railroads, canals, steamboats, transcontinental railroad) on the settlement of the west? ***(select all that apply.)*** a. they led to an increase in population density. b. they made it easier to travel long distances. c. they in establishing towns. d. they led to the development of the fur trade. e. they allowed for international travel.