"a. Most Americans still lived on farms, even though cities were booming" and "<span>b. Thousands of children worked from sunup to sundown—and a few people began to pay attention" </span>would both be correct. This is what led to the unions.
"<span>a. During the two centuries following the discovery of the New World, over 90% of the native population were killed by disease and warfare" would be the best option but it should be noted that the 90% figure has been disputed recently.</span>
Alright. States’s right was easily of the biggest issues during the civil war. The main idea is that the Slaving-owning South believed that the Abolitionist North would eventually make slavery illegal, as the North held more political power then the South. They decided that in order to keep the North from using the federal government to abolish slavery, they would weaken the federal government. Thus the concept of State’s rights was used as an argument for Southern leaders and politicians.
The answer is "Christianity".
I am 100% sure.
The Watergate Scandal was a revelation that the Nixon administration had been involved in "<span>b. a break-in at DNC headquarters," since it was believed that the administration had been trying to sabotage the Democrats. </span><span />