Across
- 1. illegal hunting
- 3. a period of dryness
- 4. the practice of, e.g., producing crops
- 7. symbiosis is a mutual _ of two species
- 9. the destruction of forests
- 10. any kind of weather condition where something's falling from the sky
- 13. the community of interacting organisms and their physical environment
- 14. an animal under the threat of becoming extinct is _
- 15. Volkswagen exhaust _ scandal began in 2015
Down
- 2. a tragic event
- 5. biological variety in an environment
- 6. the process of becoming desert
- 8. Tens of thousands of elephants are being killed every year for their _ tusks
- 11. more frequent wildfires are an effect of _ change
- 12. carnivores are at the top of the _
- 14. A glacier's gradual movement causes _