Following the 2010 BP oil spill, the president, Congress, and various government agencies had difficulty deciding on the correct actions to deal with the problem. This indicated a problem with

Which of the following is a power specifically denied the national government by the Constitution?

a. emit bills of credit b. make treaties with foreign nations c. imposing a tax on goods imported from any state d. regulating interstate commerce

Whether experimental research is conducted in the laboratory, a doctor's office, or at the mall is considered the

a. research participants. b. independent variable. c. experimental setting. d. dependent variable.