Across
- 3. when grass land becomes desert.
- 5. Fog combined with air pollutants
- 8. Cutting down a lot of tress in one area
- 10. The tinning of the ozone layer
- 11. The cultivation of a single crop
- 12. The process of getting coal
- 13. Genetically modified organism
Down
- 1. Harmful things getting into the environment
- 2. People Moving to cities
- 4. The science of farming
- 6. Caring for our forests
- 7. When argicultural technologies increased food production
- 9. Oceans pH level Decreasing