Why do the president, members of congress, and federal judges take an oath to defend the constitution of the united states?

Why did river valleys most farming impact the lives of neolithic peoples?

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay