Which of the following is an empirical question?
1) Would Martin Luther King, Jr. have been a good president?
2) What is the meaning of life?
3) Was the Civil War necessary?
4) Is there life on other planets?
1) Would Martin Luther King, Jr. have been a good president?
2) What is the meaning of life?
3) Was the Civil War necessary?
4) Is there life on other planets?