-population density patterns: the difference in population in a given region, more people live closer to fresh water sources like the Nile River.
-Aswan dam-advantages: increased Egypt's farmable land by 50% and avoided having droughts.
-Nile river basin: covers 1,256,591 square miles, about 10% of the area of Africa
-Ergs, Regs, Hamada: Ergs-great seas of sand, Regs- gravel covered plains, Hamada-high rock covered flatlands
-marginal land: land not suited for farming
-significance of the Suez Canal: artificial sea level water way in Egypt used for trading
-Niger River delta: 4000 oil spills have occurred here, massive deposits of soot
-Escarpment: a steep slope
-Development of Africa – why did the two regions develop different: saharan is mostly desert which means less crops unlike sub saharan which has a habitable climate which is good for growing crops
-negative impacts of colonization in Africa: disease, famine, no strong central government all due to low infrastructure
-Berlin conference: purpose was to acquire resources, this was done by splitting up Africa in to the parts each country needed
-HIV/AIDS: prevalent in sub saharan Africa, AIDS is accompanied by HIV
-Arab spring: democratic movement through Arab world which protested against repressive regimes