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Birth Rate

Number of Births in a year for every 1,000 people

Death Rate

Number of Deaths in a year for every 1,000 people


Study of human population

Dependency Ratio

Number of old and young people

Life expectancy

How long your expected to live

Replacement Rate

Total fertility rate that replaces population

Total Fertility Rate

Average number of children for a woman


Age group

Developed Country

Rich country

Developing Country

Poor country

Rapid Growth Rate

Birth Rates remain high as economic development begins. But death rates fall as food supplies increases and health care improves.

Slow Growth Rate

As the economy improves, birth rates drop. Death rates stay low, and population growth begins to slow down

Negative Growth Rate

In developed countries, both birth rates and death rates drop to low levels. As a result, there is little or no population growth. Over time, birth rates may fall behind death rates, resulting in a shrinking population

Baby boomer

Someone who was born in the baby boom

Population Density

How many people in a country

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