The salad bowl concept suggests that the integration of the many different cultures of United States residents combine like a salad, as opposed to the more traditional notion of a cultural melting pot. New York City can be considered as being a "salad bowl".
The correct answer for this question is "a. a lack of child labor laws" All of the following were factors that led to the first labor strikes in the United States EXCEPT <span>a lack of child labor laws. It is very important to have laws regarding and protecting the safety of the children.</span>
The most powerful was economic prosperity of European countries. They could exploit the land and the people of Africa and take their raw resources such as diamonds for example and take them to Europe. There they would be able to make goods with them and sell them to people for a lot of money and this meant that they would grow vastly richer than they were before.
Scientists like Einstein, Bethe, Fermi, Teller, and Bloch emigrated from "Germany" in order to escape persecution and pursue scientific research, since this took place during the rise of the Nazi Party, which was highly anti-Semitic.