Answer:
The answer should be: Companies replaced hand-operated brakes with air brakes on trains.
Explanation:
You have to think how hard it was for trains to stop with hand operated brakes. Trains go fast, and not stopping in time can be dangerous. Hope this helped :)
Wires and wooden logs.
Both of these materials were essential for building a strong fortified line during the First World War. Having both of these meant that much more people on one side would survive as it was extremely hard to cross either of the two materials.
Answer: C
One common question that was asked is "Does government have a responsibility to respect the rights of its citizens?" because the citizens always respected the government.
Hope it helps!
Federalism is the system of government in which power is divided between a central government and regional governments; in the United States, both the national government and the state governments possess a large measure of sovereignty.
