What is exponential 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.
What is fertility rate?
Fertility rate is the amount of children a woman is expected to have on average depending on what country they are in.
What is life expectancy?
Life expentancy is the average age someone in a country is expected to live for.
What is a refugee?
A refugee is someone who doesn't have a home and enters another district or country for a new home.