Unit 2 Vocab Flashcards
Arithmetic Population Density
The total number of people divided by the total land area.
Physiological Population Density
Dividing the population by the amount of arable land
Arable
Land suited for growing crops
Agricultural Population Density
The number of farmers t the area of arable land
Age-sex graph; Population Pyramid
A tool based on age , gender, birth rates & deaths , economic development . . .. gives evidence of past events like wars and environmental issues
Cohorts
A vertical Axis showing age groups
Dependency ratio
The comparison between sizes of potential work force and dependent population.
Crude Birth Rate
The number of live birth per year for each 1000 people
Total fertility rate
Woman in their childbearing years ages 15 to 49
Life expectancy
The number of years a person can live
Infant Mortality Rate
the number of children who die before their first birthday
Crude Death rates
An Area measured by 1000 population
Rate of Natural Increase
The percentage of which a country population grows of declines, Without the impact of migration
Immigrants
People who move into the country
Emigrants
People who moved out of the country
Demographic Transition Modal
Shows 5 typical stages of population change that countries experience as they modernize
demographic momentum
The tendency for growing population to continue growing after a fertility decline because of their young age distribution
epidemiological transition model
The changes death rates and more common causes of death within society
Zero Population Growth
When the Crude Birth Rate equals the Crude Death Rate and the natural increase rate approaches zero
Replacement fertility
when the population’s fertility is just high enough to maintain its current population
Doubling time
the amount of time it takes for the population of a region to double