Why do countries trade, and what benefits do they receive from trading? Give two examples of benefits you receive from international trade. << Read Less

Countries trade in order to exchange goods and services with each other. This helps in the building of ties and friendship between the countries. The exchanged goods and services help in the increase of their earnings and gross domestic product which is used in running the affairs of the country. This is the more reason why the Global economic powers are known for their high level of production. This helps them in selling their goods to other countries and earning more revenue.

Benefits also received from trading with other countries include availability of different products and choices to make which enables higher quality of goods and services.

early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the out of africa migration of homo erectus. this initial migration was followed by other archaic humans including h. heidelbergensis, which lived around 500,000 years ago and was the likely ancestor of both denisovans and neanderthals. early hominids were said to have "crossed land bridges that were eventually covered in water" .

within africa, homo sapiens dispersed around the time of its speciation, roughly 300,000 years ago.the "recent african origin" paradigm suggests that the anatomically modern humans outside of africa descend from a population of homo sapiens migrating from east africa roughly 70,000 years ago and spreading along the southern coast of asia and to oceania before 50,000 years ago. modern humans spread across europe about 40,000 years ago.

the migrating modern human populations are known to have interbred with local varieties of archaic humans, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans.

after the last glacial maximum, north eurasian populations migrated to the americas about 20,000 years ago. northern eurasia was peopled after 12,000 years ago, in the beginning holocene. arctic canada and greenland were reached by the paleo-eskimo expansion around 4,000 years ago. finally, polynesia was peopled after 2,000 years ago, by the austronesian expansion.

the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes