The Civil War was a time of great social and political upheaval. It was also a time of great technological change. Inventors and military men devised new types of weapons, such as the repeating rifle and the submarine, that forever changed the way that wars were fought. Even more important were the technologies that did not specifically have to do with the war, like the railroad and the telegraph. Innovations like these did not just change the way people fought wars–they also changed the way people lived.
New Kinds of Weapons
Before the Civil War, infantry soldiers typically carried muskets that held just one bullet at a time. The range of these muskets was about 250 yards. However, a soldier trying to aim and shoot with any accuracy would have to stand much closer to his target, since the weapon’s “effective range” was only about 80 yards. Therefore, armies typically fought battles at a relatively close range.
D, If you buy two new games, your opportunity cost is the time you could spend talking on the phone.
Explanation Opportunity cost is the value of the next best thing you give up whenever you make a decision. In this case the opportunity cost of buying the two games is the time you could be using the phone.
A poll tax is when people are "taxed" to pay, or essentially pay-to-play. This soon was dropped out of favor, for there were relatively poor whites who were not able to pay the tax, thereby they were ineligible to vote.
