Who has the power to regulate marriage and divorce?

What is the formal role of congress on amending the constitution

Between 1518 and 1548, spanish conquistadores conquered most of the new world, motivated by the a) desire for scientific knowledge. b)  to urge to claim more territory for spain. c) belief that an all-water western route to the orient existed. d) desire to advance national glory, serve god, and seek personal wealth.

Rank the following from most to least devasting: ordovician,permaian,cretaceous, pleistocene