diving deeper notes 2

• components of population growth
• natural increase
• about 82million people are added to the population of the world annually
• more than 95% of the natural increase is clustered in developing countries
• fertility (TFR)
• TFR of the world 2.5(CIA: 2.42)
• mortality (IMR)
• 5 in developed countries and 80 in sub-Saharan Africa
• summary of spatial patterns
• developed countries
• lower rates of...
• natural increase
• crude birth
• infant mortality
• total fertility
• developing countries
• higher rates of...
• natural increase
• crude birth
• infant mortality
• total fertility
• population structure: a special graph know as a population pyramid can visually display a country's distinctive population structure
• baby boom 1946-1961
• population structure
• dependency ratio
• defined as the number of people who are too young or too old to work, compared to the number of people in their productive years (dependents are 0-14 and65 and up)