Geography : Population Growth

Exponential growth is when the population suddenly rises and keeps rising for a number of years. This can be shown by a "J" curve.

Fertility rate is the amount of children a woman is expected to have on average depending on what country they are in.

Life expentancy is the average age someone in a country is expected to live for.

A refugee is someone who doesn't have a home and enters another district or country for a new home.