| A | B |
|---|
| After the Industrial Revolution the human population has | increased exponentially |
| Current world population | 8.2 billion |
| Average # of years a person is expected to live | Life expectancy |
| Infant Mortality Rate | # of babies out of 1000 that die during first year of birth |
| Total Fertility Rate | Average # of children a female has during her lifetime |
| Ratio of males to females | Sex Ratio |
| A population of mostly young people tends to | grow rapidly |
| A population with equal of young and old tends to _______ | remain stable in size |
| A population of mostly older people tends to ______ | shrink |
| Some Environmental Impacts of Human Population Growth | Pollution, deforestation, loss of biodiversity, climate change |
