Terms

• Life expectancy is low in Africa
• 1/5 babies in Angola don't make it
• RNI-more people being born than dying; it will be a positive number (birthrate-death rate = RNI)
• Population going up in the last 50 years
• TFR- the average that are born to a women in a given population
• Need to have 2.1 babies to keep the population the same
• immigrant comes in
• emigrant goes out
• More people leaving Mexico then coming in