What region did scientists think may have been a large sea?

Who built the first turnpikes in the united states? a) the national government b) state governments c) private companies d) town councils

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money

The belmont principle of beneficence requires that: a. subjects derive individual benefit from study participation.b. potential benefits justify the risks of harm.c. the study makes a significant contribution to generalizable knowledge.d. risks are managed so that they are no > minimal.