Across
- 3. food type that has the largest emissions.
- 4. desert where the Green Wall of China is located.
- 6. happens because human activities impact on the soils ability to support plants.
- 8. underground storage of water.
- 9. changed to create flat land and regulate water flow.
- 10. process where once productive land becomes too infertile, salty or eroded.
- 15. removal of forest by humans from a biome.
- 18. crop that can help lower the water table in salinity prone areas.
- 19. the the category of salinity caused by human impact.
- 23. name for grasslands in Asia.
- 24. opposite of food security is food _______.
Down
- 1. desert located in Northern Africa.
- 2. to control weeds and insects, but also cause pollution.
- 5. province in Madagascar.
- 6. natural process that can lead to desertification.
- 7. is an example of this method of watering crops.
- 11. process where wind and water move exposed soil.
- 12. strategy to control salinity.
- 13. land that is difficult to cultivate.
- 14. name given to grasslands in North America.
- 16. amount of salt causes problems in the soil.
- 17. plateau in China with the most highly erosion-prone soil.
- 20. help bind the soil together.
- 21. gas released by farming that contributes to climate change.
- 22. organism that grows out of control to create 'dead-zones' in waterways.