Hope this helps you with ur questions :)
Answer: U.S. teetering on isolationism and only being involved in world affairs if it directly affects the U.S.
Explanation:
George Washington pursued an isolationist policy when he was President and this established a precedent for his successors in the 1800s. They generally tried to stay out of world politics unless it affected the U.S. directly.
Overtime, the definition of affecting the U.S. directly changed and as a result the U.S. became increasingly involved in world affairs starting from the Monroe Doctrine to acquiring territories in the Caribbean and the Pacific.
One of the things that is important for a civilization to develop is a good geographic location, which is why most early civilizations were located near rivers, thus you have river valley civilizations because it had rich soil, good for planting, growing crops. Eventually many of the people starting living in permanent settlements (neolithic revolution). Rivers also brought monsoons, but also brought many floods. Many developed irrigation systems and canals, and made many other things.
"Eastern" and "Central" were the two <span>regions of Europe among the following choices given in the question that </span><span>were strongly opposed by many Americans, due to Red Scare. The correct options among all the options that are given in the question are options "B" and "C". I hope that the answer has come to your help.</span>
Answer:
The concern of the U.S was if Korea and Vietnam became communist more countries would fall in Asia ( Domino effect and Containment)