What does the term popular sovereignty mean?

Which foreign policy initiative countered the spread of soviet influence by restricting the spread of communism? a. roosevelt corollary b. truman doctrine c. nullification proclamation d. good neighbor policy

How did the g. i bill affect colleges? a. it increased demand for teachers b. it increased demand for support workers on campuses. c. it increased demand for construction on campuses d. all of the above

Which of these discoveries contradict components of dalton’s atomic theory?