The us economic ups and downs in the 2000s led to the relocation of hundreds of thousands of people to the?

What is the difference between external & internal migration

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Over half of the african-american population in the united states live in