UNIT 2 APHUG vocab words

Agricultural density

Measure the number of farmers per arable land

Arithmetic density

Measure of the number of people within a given area divided by the total land area

Physiological density

Measure of the number of people per arable (farmable) land

Demographics

Study of population characteristics

Population distribution

Locations where individuals or groups live

Population density

The number of people within a given area

Natality

Birth rate per 1000 people in one year

Mortality Rate

Number of deaths in a single year for every 1000 people in a population. 

Life Expectancy

Average number of years you are expected to live, based on where you were born given current social, economic, and medical conditions. 

Rate of Natural Increase

How fast or slow a country’s population grows

Doubling Time

Projected time it takes a country to double in population 

Population Pyramid

Provides a visual representation of a population in terms of age and sex aswell as a good indication of the dependency used to assess population growth and decline and to predict markets for good/service. 

Aging Population (graying)

focus on older age (65 or older) when fertility is declining

Sex Ratio 

The number of males compared to females 

Child Mortality Rate

Annual number of deaths before the age of 5

Infant Mortality Rate

Annual number of deaths of infants under age 3.

Dependency Ratio ( Elderly Dependency Ratio & Youth Dependency Ratio)

Amount of people dependent on others for survival in a country ( elderly : 65 and over & youth: 15 and under). 

Demographic Equation

How a population changes by adding births and immigration, and subtracting deaths and emigration. 

Total Fertility Rate

Average number of children a women will have throughout childbearing years

Overpopulation

when there are too many people in an area for the resources available to support them.

Underpopulation

when there are too few people to use all the resources in an area effectively.