Answer:
It means like how are social changes crated. This means like changes in how we create relationships and continue them. We dont realize, but we are changing everyday. So in this question its asking how are those changes created and how to they last?
Over speculation means to over "guess." eg, majority of the people feel the stock market will go up, so they greedily buy, when in reality it's the peak already and stock market prices will drop soon.
Answer:
In the 1920s, Harlem in New York City became the unofficial capital of black American culture, a hotbed of intellectuals, artists, and musicians.
Explanation:
