Airplanes were vital for ww1 to ease transport of amo and soon guns on the planes including bombs this made it easier for to launch quick air strikes on places like bases vulnerable to air strikes
The correct answer is agriculture. It was made possible for people to live on a single piece of land and not be nomadic anymore in search of food. Agriculture enabled them to settle around river valleys like Nile or Tigris and Euphrates. This is the era when civilizations started rising worldwide.
Answer:
1945-1989 was period of United States foreign policy focused on the containment of the spread of communism in other nations also known as cold war.
Answer: Robert Parris "Bob" Moses
Hope this helps
The correct answer is letter B.
Explanation: The arrival of the Genoese navigator in America provides natives of the New Continent or contact with a plethora of microorganisms that were not known to them. The most striking example was a variable, which was nonexistent on the American continent and was brought with Europeans. The result was the extermination of the American population through disease rather than wars. Ignorance of the causes of diseases caused by indigenous people does not isolate patients, thus avoiding the contagion of other inhabitants of a village. Since they did not know that microorganisms were also transmitted by air, when a village was infected, a disease spread, leading some of the inhabitants to seek refuge in another village, spreading as diseases and as deaths.
