The Human World L2

_ is the total number of people in a given area.

_ is a measure of the number of people living in an area, expressed as persons per square mile or square kilometers.

_ is the annual number of births per 1,000 people.

_ is the annual number of deaths per 1,000 people.

_ is a common cause of population change.

The study of human _ focuses on the total number of people in a given area.

Studying the _ is one way to track the percentage of natural increase in the population.

Calculating _ can tell us whether a population change.

• migration

• natural increase

Land is more expensive in areas with higher _.

The rate of natural increase is the rate at which a population is changing. It is determined by subtracting the _ from the _

• death rate / birthrate

• birthrate / death rate