Across
- 3. Area Geographic area that is located outside towns and cities
- 5. Disordered or haphazard mess
- 7. Bloom Rapid growth of algae
- 8. Fuel Natural fuel like coal
- 11. Containing salt
- 12. Rotation Growing a series of different types of crops in the same area across a sequence of growing seasons
- 13. Farming Farming practice that involves tilling sloped land along lines of consistent elevation
- 15. Pollution The presence into the air of a substance which has harmful effects
- 16. Agriculture System of farming to produce food and livestock without harming the environment
- 19. Hole A region of marked thinning of the ozone layer
- 20. Something that can cause the risk of a brith defect in a baby
- 21. Crop A crop grown for the protection and enrichment of the soil
- 22. Preparing land for raising crops by plowing and harrowing
- 23. The activity of growing one crop among others of a different kind
Down
- 1. Island Urbanized area that experiences higher temperature than outlying areas
- 2. The process of making an area more urban
- 4. use Use of human land
- 5. degradation Loss of the physical,chemical and/or biological qualities of soil
- 6. cover Water quality, Watershed hydrology, habitat and species composition, climate, and carbon storage
- 9. Make or form into a number of level flat areas resembling a series of steps
- 10. The basic physical and organizational structures and facilities needed for the operation of a society
- 14. Area A human settlement with a large population
- 17. Naturally occurring radioactive gas
- 18. A poison that attacks the nervous system
- 19. Excessive grazing which causes damage to grassland