The Black Death killed millions of millions of people which lowered the population
Answer:
The third sentence is a clear example of the concept of social contract.
Explanation:
The idea of social contract became important during the Enlightenment because it established that the power lies in the people and not in the figurehead of government. The French writer Rousseau is one of the Enlightenment thinkers that popularized the term. This concept goes on to explain that if the government is not serving its people and is not acting in the people's best interest, then the people have the right to remove it and place a new government in its place. This can clearly be seen in the third sentence.
Answer: On April 6, 1917, the United States formally declared war against Germany and entered the conflict in Europe. Fighting since the summer of 1914, Britain, France, and Russia welcomed news that American troops and supplies would be directed toward the Allied war effort.
Explanation:
