Answer: 1. In the 1970s most immigrants came to America from the Americas and Asia.
2. Title IX banned discrimination on the basis of sex in educational programs.
3. The court case that made abortion legal in 1973 is Roe v. Wade.
4. Affirmative action is the practice of giving special consideration to non-whites and women.
5. Rachel Carson brought attention to environmental issues, particularly the impact of pesticides and other chemicals on the environment, with her book "Silent Spring."