Which two areas have most immigrants to the united states come from in recent years?

The continents of africa and south america used to "fit together” like puzzle pieces. about how far back in time would you have to go to find the formation of the atlantic ocean? 600 million years 430 million years 200 million years 90 million years

How does sociology account for the cause of drug and alcohol addiction?

What is the legal and political process involved in forming a new municipal corporation