<span>Both are densely populated</span>
The best and correct answer would be It was in an area of the world that emperors did not want to conquer. This is a strong country with brave emperors which the other countries do not want to deal with.
Answer:
The actions of the civil right organization (eg: Martin Luther King, Black power movement etc)
Answer: The Automobile industry
Explanation:
In the 1920s, the Automobile industry had been revolutionized in no small part by Henry Ford which led to cars becoming so popular that everyone wanted to buy one.
This growth in the automobile industry led to growth in other industries that the automobile relied on such as oil which powered the car, glass which was used to make the cars, tourism which became easier to engage in with a car and road building which provided a conduit for cars to move.