1. Population Geography CHAPTER 4 – SECTION 2

2. Population Growth 1850: 1 billion 1930: 2 billion 1975: 4 billion 1999: 6 billion 2050: 9 billion

3. Birth and Death Rates BIRTHRATE: The number of births per 1,000 people. MORTALITY RATE: The number of deaths per 1,000 people. INFANT MORTALITY RATE: Number of deaths among infants under 1 years old, per 1,000 births.

4. Population Distribution About 90% of people live in N. hemisphere. Almost 2/3 live between 20˚N-60˚N. Populations centered on coastal regions and river valleys.

5. Migration PUSH FACTORSPULL FACTORS

6. Population Pyramid

7. Population Breakdown Joshua – 2000 Census 85 years and over32 75 to 84 years141 65 to 74 years271 60 to 64 years202 55 to 59 years231 45 to 54 years590 35 to 44 years710 25 to 34 years593 20 to 24 years274 15 to 19 years396 10 to 14 years361 5 to 9 years353 Under 5 years374