Answer: Neolithic Revolution. The Neolithic Revolution changed the way humans lived. The use of agriculture allowed humans to develop permanent settlements, social classes, and new technologies. Some of these early groups settled in the fertile valleys of the Nile, Tigris-Euphrates, Yellow, and Indus Rivers.
Explanation: <em><u>PLEASE MARK AS BRAINLIEST</u></em>
Answer:
The domino theory is that when one country or region falls to communist rule, others would follow suit.
Containment was the U.S' theory of not letting communism to spread.
When the domino theory was introduced, containment was the solution in America's perspective at the time.
(This theory proved to be wrong.)
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Explanation:
They didn't encourage it, but they did it to expand their empire, wealth, and power, through exploring the New World.
The federal government established the interstate Commerce Commission to supervise the performance of the railroad industry. Railroads were the first industry to be regulated by the federal government.
