AP Human geography chap. 2 Vocab

A model used in population geography that describes the ages and number of males and females within a given population; also called a population pyramid.

The ratio of the number of farmers to the total amount of land suitable for agriculture.

The total number of people divided by the total land area.

largest number of individuals of a population that a environment can support

population count

birth control by the use of devices (diaphragm or intrauterine device or condom) or drugs or surgery

The number of deaths per year per 1,000 people.

the number of live births yearly per thousand people in a population

change in a population from high birth and death rates to low birth and death rates

study of populations

The number of people under the age of 15 and over age 64, compares to the number of people active in the labor force.

the time required for a population to double in size

The portion of Earth's surface occupied by permanent human settlement.

distinctive causes of death in each stage of the demographic transition

The total number of deaths in a year among infants under one year old for every 1,000 live births in a society.

an expected time to live as calculated on the basis of statistical probabilities

Was one of the first to argue that the worlds rate of population increase was far outrunning the development of food population. This is important because he brought up the point that we may be outrunning our supplies because of our exponentially growing population.

an ideology promoting many children

Official policies designed to discourage births

The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate.

a belief that the world is characterized by scarcity and competition in which too many people fight for few resources. Pessimists who warn of the global ecopolitical dangers of uncontrolled population growth

too much population

The number of people per unit of area of arable land, which is land suitable for agriculture.

optimists who question limits-to-growth perspectives and contend that markets effectively maintain a balance between population, resources, and the environment

When populations cluster around cities and have suburbs and cities and such

A bar graph representing the distribution of population by age and sex.

the number of children a couple must have to replace themselves (2.1 developed, 2.7 developing)

The number of males per 100 females in the population.

the average number of children a woman in a given population will have in her lifetime. This number is different in different countries

when the birth rate equals the death rate