Defintion- a system of government that is centralized and dictatorial and requires complete subservience to the state.
t's definitally D because the great depression and all of that stuff
Answer:
The correct answer is D. The use of airplanes for mail transport.
Explanation:
Passenger transportation services began to expand through the mail business and at the same time they began to prosper in important markets.
Since the establishment of this kind of service, airplanes became faster, bigger, and they have had improvements in terms of fuel-efficient. However, the technological improvements in the airline industry have decreased, but there are still some innovations that could be applied.
Passengers prefer the use of airplanes because they can travel long distances in less time and because the airlines usually offer competitive prices.
Answer:
a system of government in which most of the important decisions are made by state officials rather than by elected representatives.
Explanation: