The earth has a magnetic north and south. how does this up with evidence to support the theory of continental drift?

What part did glaciers play in forming the great lakes?

Why isn't the balkan region good for farming? it has dry summers. it is far from the sea. its soil is not fertile. its terrain is mountainous. its winters are mild.

How have ethnic groups shaped the population in central america and the caribbean? how has migration shaped the population in central america and the caribbean? how has small land areas shaped population in central america and the caribbean? how has a rapid population growth shaped the population in central america and the caribbean?