Dinosaurs emerged during what time period

How have a past president and our current president abused the powers granted to the president of the united states by the constitution and the people ?

As nation-states began to arise in europe, who became the most powerful individuals?

Which of the following lists correctly orders the earth's layers from its innermost layer to its outermost layer? a. mantle, inner core, outer core, crust b. crust, inner core, outer core, mantle c. crust, mantle, outer core, inner core d. inner core, outer core, mantle, crust