What was a new method of production during the Second Industrial Revolution?

steam power

interchangeable parts

factory system

assembly line

Which of these events was a severe setback for the u.s. war effort in the pacific?

Ahistorian has discovered a letter written by an early roman emperor. she translates the letter and discovers that it contains orders to a general before a battle. she works to determine when the letter was written to figure out which battle the letter references.the historian in the passage is most clearly demonstrating which historical thinking skill? a. identifying causes and historical contextb. thinking chronologicallyc. making and evaluating arguments and interpretationsd. analyzing historical sources

Why did the colonists believe that king george was trying to have them killed?