Too much power to the central government.
Answer:
The end of the Stamp Act did not end Parliament’s conviction that it had the authority to impose taxes on the colonists. The British government coupled the repeal of the Stamp Act with the Declaratory Act, a reaffirmation of its power to pass any laws over the colonists that it saw fit.
Explanation:
The <em>Union</em> was confirmed by the most industrialized states in the country. This meant that the production of weapons and tools related to war logistics was controlled by them. Besides having more weapons and supplies, the <em>Union</em> also had more soldiers, as the population was considerably bigger in the north.
Railroads are a sign of development. In terms of war, they helped mobilize troops and resources along the country with relative ease in comparison to their <em>Confederate</em> counterparts. This represented a great advantage for the <em>Union</em>.
Besides having the previously mentioned advantages. The <em>Union</em> also had the naval power on their side and executed the blockade in an attempt to cut the resources from The <em>Confederacy</em>. As a response, the southern states replaced the growth of Cotton with other crops in order to have food supplies.