Population

Demographer

A scientist who studies the population

Population

A sum of people which live in an area

Population Density

the average number of people living within a square mile or square kilometer

Death Rate

measure of deaths in a population per 1000 people

Birth Rate

measure of births in a population per 1000 people

Zero Population Growth (ZPG)

When the number of people in a population doesn't grow or decline

Infant Mortality Rate

the number of deaths of infants under 1 year old per 1000 live births

Life Expectancy

An average of the number of years a human is expected to live

Fertility Rate

the expected number of children born to a woman over her lifetime

Rural

Sparsely populated- not many people (country)

Urban

Densely populated- large number of people (city)

subsistence farming

farming in which only enough food to feed one's family is produced

agriculture

farming

Literacy

the ability to read and write.

doubling time

The number of years it takes a population to double in size based on its current growth rate

population distribution

The pattern of where people live

Migration

movement of people from one place to another

immigrate

to move permanently to a new country

refugee

A person who has been forced to leave their country in order to escape war, persecution, or natural disaster

Urbanization

the growth of cities

Megalopolis

A huge cluster of cities with an extremely large population

emigrate

To leave one's home to live in another place