Answer:
Many people say immigrants change the fabric of a society's culture. Technically, they do. But so does the passage of time, new technology, social media, a native-born population, and much more. In reality, immigrants change culture for the better by introducing new ideas, expertise, customs, cuisines, and art.
It is stuff from the past
Answer:
The US support of the South Vietnamese government.
The Nile river is the longest river that flows north.