Paano nakatulong ang pagiging dinastiya ng tsino sa kanilang kabihasnan

The earth's internal process which drives seafloor spreading is

Does anyone know the answers for these

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)