Which of the following was NOT among the technological improvements that made the modern transcontinental railroad network possible?
A. steel rails
B. air brakes
C. standard gauge tracks
D. the block signal
E. the electric engine
Answer: E
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Assess the validity of the following statement: "It was probably fortunate for the Union that secession and civil war did not come in 1856, following a Republican victory."
What will be an ideal response?
Why are common names inadequate in ensuring that the desired plants will be provided?
What will be an ideal response?
The roof frame may include collar beams, or collar ____.
A. tiles B. girders C. dormers D. ties
Why did critics label the period of the papal residence in Avignon the “Babylonian Captivity of the Church”?
a. They feared the popes sought to relocate the papal seat to Babylon. b. Public opinion supported the Avignon papacy and critics sought to change public perceptions. c. Critics believed that the Knights Templar had secretly obtained control of the papacy. d. Critics used the label to censure the worldliness of the Avignon church.