The three parts of the government were a Governor, a Council of Advisers, and an Elected Assembly. The governor was something like the president, that is the commander in chief with the power to veto. The Council and the Assembly were like the upper and the lower houses of the parliament. The lower was closely connected to the will and the demands of the people while the upper was more into legislature. your welcome
Slaves were used in the American colonies to perform labor because A. there were not enough workers.
America needed workers, but there were not enough people willing to perform such difficult jobs for basically no money at all, which is why they brought slaves who had to work for free.
The Homestead Act was attractive to settlers, because it gave land to anyone over 21, or head of family (even women and former slaves), who applied for land, this land for a very cheap price (or no price at all) and through this it enabled easy settlement. The farmers had to then cultivate the land for a period of time, and if they did not abandon it and tended to it properly, it became their property.
The military facility that was built in Oak Ridge, TN in 1942 was created as the production site for the Manhattan Project. The Manhattan Project was an American, British, and Canadian project that developed the first atomic bomb.
D. developing materials to be used in the creation of the atomic bomb