Across
- 3. study of human population statistics
- 5. many human societies changed from roaming hunter-gatherers to settled farmers because of this
- 7. number of babies out of 1000 that die in their first year of life
- 8. population changes in size during a specific period of time
Down
- 1. average number of years an individual is expected to live
- 2. began in mid 1700s
- 4. how many people live per square mile or square kilometer
- 6. is roughly 8.2 billion