Across
- 2. drought, tornado, frost (doesn't matter how many individuals
- 4. a dependent factor (like disease)
- 6. unrestrained reproduction
- 9. # of individuals an environment can support indefinitely
- 13. amount of productive land/resources we need to support us
Down
- 1. we must keep populations at or below this threshold
- 3. these advances led to population boom
- 5. a hygiene related contribution to pop. boom
- 7. rate of children per woman
- 8. reduces fertility rate
- 10. emissions of this are the biggest part of out footprint
- 11. a fertility influencer
- 12. a land depleting biodiversity degrading activity