Answer: their dependency on slave trade and domination of slave trade (caused by waging war)
Explanation: trust me
Canals cut the cost of transporting materials, improved railroads which helped the movement of heavy wagons, railroads linked manufacturing cities with different materials.
The main way in which the poem, "The White Man's Burden", justifies imperialism to the industrialized world and the unindustrialized world is that it implies that it is the "obligation" and duty of white men in developed and rich countries to colonies poorer countries--in order to implement more "modern" and prosperous forms of government.
I think many immigrants came to the Middle colonies seeking religious freedom.
