Which is the best example of checks and balances? a) congress may override a president’s vetoing of a bill. b) the supreme court bases its judgments on constitutional law. c) the president works to ensure that existing laws are enforced. d) the constitution may be amended to fit changing circumstances.

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d. cities with shipyards declined because so many ships had been sent overseas.