Population Na
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The document discusses key concepts related to population growth including birth rate, death rate, natural increase, and infant mortality rate. It provides formulas for calculating natural increase by subtracting the death rate from the birth rate. Factors that cause the population to increase are higher birth rates, while death rates influence population decrease. Homework questions ask about factors that affect birth rates and death rates.
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Population Na
- 2. Population Workbook Pg 11 to 16
- 3. Important Key word Population growth Birth rate Death rate Natural increase Infant mortality rate
- 6. Formula BR – DR = NI
- 7. What causes population to increase? Birth rate (BR) Refer to the number of live births per 1000 people per year Death rate (DR) Refer to the number of death per 1000 people per year Rate of natural increase (NI) Calculated by subtracting the death rate from the birth rate
- 8. Extra Infant mortality rate The number of deaths among infants under one year of age for every 1000 live birth per year.
- 9. Homework What causes BR to increase or decrease? What causes DR to increase or decrease?