It's the process by which towns and cities grow bigger and more and more people go to live in them.
Urbanization
It's the process in which people come to a country in order to live there permanently.
Immigration
It's a situation in which a lot of people leave a place in order to live somewhere else, leaving far fewer people in the original place.
Depopulation
To become less.
To decrease
It's having no movement, fixed, staying in one place or position.
Static
A gradual change or development that produces a particular result.
A trend
It's when something is at its highest or greatest level.
A peak
To become larger in amount or number.
To increase
It's an increase in the size, number, or development of something.
Growth
It's a very large increase in the size, amount, or importance of something over a very short period of time.
An explosion
It's the bottom part, edge, or surface of something.
A base
It's the length of time that someone is likely to live.
Life-expectancy
More economically developed countries.
MEDCs
Less economically developed countries.
LEDCs
Containing too many people or things in one place.
Overcrowded
It's the total value of goods and services a country produces in a year, without income from investments in other countries.
GDP or Gross Domestic Product
The practice of controlling the number of children that you have by using contraceptives.
Family planning
It's a reduction in the amount or quality of something.
Decline
Relating to populations.
Demographic(s)
It's the amount of something in a place.
Density
It's the number of deaths of children under a year old in a particular society.
Infant mortality
It's the number of people who live in a particular area.
Population
Existing in small amounts, or very spread out.
Sparse
It's a graph showing the age and sex distribution of a group of people.
A population pyramid is