| A | B |
|---|
| famine | a severe shortage of food that results in widespread hunger |
| zero population growth | a condition where the population of a country doesn't grow but remains stable. This condition happens when the birth rate plus immigration equals death rate plus emigration |
| rate of natural increase | the annual rate of population growth. This is calculated by subracting the death rate from the birth rate |
| doubling time | the length of time it takes for a population to double |
| consumption | the using up of goods and services; also the purchase and use of goods and services by consumers |
| arable land | land suitable for growing crops |
| population distribution | where people live in a country, whether crowded together in cities or spread out across the countryside |
| arithmetic population density | the population of a country divied by its total land area |
| physiologic population density | the population of a country divided by its arable land area |
| commute time | the amount of time spend traveling to and from work |
| extended family | a family made up of parents, children, grandparents and sometimes more distant relative |
| nuclear family | family made up of parents & their children |
| eathquake zone | an area where earthquakes are likely. Often where tectonic plates meet |
| earthquake-resistant construction techniques | building methods used to make structures safer during earthquakes |
