Population and Settlement

• Over 7.6 billion people on the planet right now
• Increasing by 73 million a year
• 90% of the populations growth happens in developing countries
• U.S. life expectancy: (79.68 total:     77.32 Men,     81.97 Women
• Crude birth rate: number of births per 1000 of the population
• Crude death rate: number of deaths per 1000 of the population
• Rate of natural increase is found by subtracting the death rate from the birth rate
• People migrate for many reasons 
• Total Fertility Rate (TFR): Average number of children born per woman 
• For a population to remain the same, the TFR must be 2.1