Across
- 2. Water that has been used in homes, businesses, or industries.
- 4. The average number of children born to women during their reproductive years.
- 6. The process by which fertile land becomes desert.
- 8. The standard of health, comfort, and happiness experienced by an individual or group.
- 9. A large increase in crop production using fertilizers, pesticides, and high-yield crops.
- 10. The number of deaths in a given area or period.
- 11. The extraction of valuable minerals from the Earth.
- 12. The model that shows the movement from high birth and death rates to low ones.
- 16. The science or practice of farming.
- 17. A country seeking economic and social advancement.
- 18. The presence of harmful substances in the environment.
Down
- 1. A country with a mature and sophisticated economy.
- 3. The process through which cities grow.
- 5. The science and craft of managing forests and woodlands.
- 7. The process of removing salt from seawater.
- 13. The worldwide reduction in the pH of seawater due to CO₂ absorption.
- 14. The gradual thinning of Earth's ozone layer.
- 15. The practice of raising herds of animals on large tracts of land.