Answer: I believe the answer is b.
Explanation:
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The causes of the Economic Boom of the 1920s were the Republican government's policies of Isolationism and Protectionism, the Mellon Plan, the Assembly line and the mass production of consumer goods such as the Ford Model T Automobile and luxury labor saving devices and access to easy credit on installment plans.
Answer:
Question 1 = A
Question 2 = C
Question 3 = A
Explanation:
Coal was excellent to help in the production of metals as they required high temperatures. The demand for coal also created a need for more efficient methods of transport. Those methods of transport used the steam engine. This allowed people to gather and use resources from further away and more efficiently.
The locomotive engine could generate more power and carry heavier loads. This made it one of the best options for delivering raw materials, such as coal, or the transport of people over long distances.
The tracks were designed to be uniform and that all the trains and their carriages would have to comply with the same design. The tracks also had to be separated to allow for carriages of different size to pass each other. Stephenson also created a timetable for all trains on his lines to follow and double tracks to avoid any collisions.
There were several reasons why factory owners kept working conditions poor in the factories. Some of the reasons were greed, desire for big profits, and not enough qualified people to do the jobs.