The three regions are Melanesia, Micronesia, and Polynesia.
Theses are the climate zones of Africa
Shifting cultivation<span> is an agricultural system in which plots of land are cultivated temporarily, .... parts of the Roman empire from 400 BC to around 500 AD </span>following<span> the collapse of Roman economy and industry. ... The root question posed by these and the numerous other </span>examples<span> that could be cited of simple societies that ...</span>