Across
- 1. a system formed by the interactions of living organisms
- 4. a type of respiratory disease
- 5. an average standard of living in countries
- 6. a country that has high economic productivity
- 8. a country where people have a low standard of living
- 10. describes something that meets the needs of present population
- 14. the body of beliefs, atitudes, skills and tools
Down
- 2. development that meets the needs of present population without endangering the needs of future generations
- 3. a group formed by people with something in common
- 7. nature based tourism that educates tourists about the natural environment
- 9. a disease that spreads worldwide
- 11. a measure of human activity's impacts on Earth
- 12. violence against civilians to achieve political ends
- 13. a rich variety of all life forms on Earth
- 15. temporary movement of people beyond their workplace and residence
