The Preamble says the U.S. Constitution was established in order to form a more perfect what?

Which national park in the Badlands of North Dakota is the only U.S. national park named for a president? On which peninsula did the Israelites wander for 40 years after fleeing Egypt? In the counting rhyme that includes "Eleven, twelve, dig and delve," what follows "One, two"? Who wrote the 1881 novel "The Portrait of a Lady," about American heiress Isabel Archer? The Snurfer, a forerunner of the snowboard invented in 1965, got its name by combining which two words? The Bible describes the promised land of Canaan as flowing with which two things? What does the "R" stand for in the MMR vaccine? The Florence & Cripple Creek Railroad, represented at its state's railroad museum, served a famous gold district in whi…