Between 1880 and 1920, the majority of the "new" immigrants to the united states came from?

What does this quotation from the introduction of thedeclaration of independence do?

Why are committees necessary in congress?

What is affirmative action as a social program intended to accomplish? do you think it has been successful? what are some specific examples that you can offer to support your answer? this is for my multicultural studies class i need asap !