Which is the most direct effect of the flooding and drought cycles in Africa? A. Herbivorous migration
B. Export economies
C. Tsunamis
D. Political unrest​

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

What body of water is the second cataract of the nile river submerged under

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)