Population- All the inhabitants that live in a particular area.
Underpopulated- Somewhere having an insufficient or low population.
Overpopulated- Somewhere having an excessively large population.
Birth rate- The amount of people born per thousand per year.
Death rate- The amount of deaths per thousand per year.
Natural increase- Difference between the amount of births and deaths each year where there are more births.
Migration- People moving to live in another country.