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 :)
I think he assisted in developing NATO, which helped Western Europe rebuild after the war. He created the Marshall Plan, which provided economic support for war-torn regions. He helped stop the spread of communism in Western Europe.
B. because the government is a great example because there are 3 branches and they all have different jobs
<span>During the old kingdom in Egypt, the government was </span>a theocracy.
