Which two scientific theories were developed by Isaac Newton?

How did the united states obtained the purchase of floridia to extand its frontiers to the pacific ocean

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

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