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 :)
Answer:
the last one, China's political system will prevent further growth of its economic system.
Explanation:
Answer:
After a series of maneuvres, Pizarro captured the Incan emperor Atahualpa at the Battle of Cajamarca in November 1532. A ransom for the emperor's release was demanded and Atahualpa filled a room with gold, but Pizarro charged him with various crimes and executed him in July 1533.
Explanation:
The Northwest Ordinance is considered one of the most important laws in American history because it created the process for admitting states and expanding the country (C).
Passed in 1787, it recognized the sovereignty of the Federal government and allowed it to become bigger and bigger by creating entirely new states in the west, instead of enlarging the thirteen states which already existed. This resulted in the creation of Ohio, Indiana, Illinois, Michigan, and Wisconsin in the early nineteenth century.