Answer:
Observation
Explanation:
According to the quote, "It is the duty of an astronomer to compose the history of the celestial motions through careful and skillful observation"
An astronomer must first observe before he can do any other thing.
The act mandates that most positions within the federal government should be awarded on the basis of merit instead of political patronage. ... The Pendleton Civil Service Act provided for the selection of some government employees by competitive exams, rather than ties to politicians or political affiliation.
Answer:
Jazz was an important element of American culture during the 1920s.
Explanation:
Neither the first nor the last answer have evidence to back them up, so that leaves the second option as the correct answer.
Answer:
It greatly weakened Lee's army?
Explanation:
The first battle the confederacy lost was bull run, the union didn't win the war at the battle of Gettysburg so I think that's the best choice