2.1-2.3 Vocab

Population Distribution

the pattern of human settlement; the spread of people across the earth

Population Density

is a measure of the average population per square mile or kilometer of an area - measures how crowded a place is

Social Stratification

the hierarchical division of people into groups based on factors such as economic status, power, ethnicity, or religion

Arithmetic Population Density

calculated by dividing a region's population by its total area

Physiological Population Density

calculated by dividing population by the amount of arable land

Arable

land suitable for growing crops

Agricultural Population Density

compares the number of farmers to the area of arable land

Redistricting

the process of redrawing district boundaries when a state has more representatives than districts

infrastructure

refers to the facilities and structures that allows people to carry out the typical activities

Overpopulation

having more people than it can support

Carrying Capacity

the number of people a region can support without damaging the environment

Population Pyramid

show the age and sex demographic of a particular country, city, or neighborhood

Cohorts

the vertical axis in a population pyramid showing age groups

Birth Deficit

the slowdown of births

Baby Boom

the birth rates spiking

Baby Bust

birth rates are lower for a number of years

Echo (boom)

the generation born after the baby boomers

potential workforce

the group expected to be the society's labor force

dependent population

everyone else, people under 15 or over 64.

Dependency Ratio

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