Population

Let's review some concepts from this topic.

Population density

Population density is the number of people per square kilometer. Commonly this may be calculated for a county, city or a country.

Fertility Rate

Fertility rate is the total number of children born in a family.

Life expectancy

The number of years in average that we can live. In modern societies with health care, vaccines and better eating habits and medicines, people can expect to live more years.

Ethnic Group

A group of people that have in common a language, background culture, or some history or even a some genetic characteristics.

Pyramid Graph

This pyramid chart is wider in the middle. The chart shows us that the population is decreasing at the moment. The age group with the most females is 40–44 . In the past, there was a rapid increase in population.

Remember that when we say increase we mean that something is growing. 

Do you know what is life expectancy?

Do you know the population of Europe? 

Europe has a population of 741 million people. That's a lot! Europe has more people than the United States.