Across
- 4. To turn up the earth in order to bury weeds and bring fresh nutrients to the surface
- 6. Source Pollutants comes from discharge points, such as drainage pipes and water treatment facilities
- 7. Mine Drainage The runoff produced when water comes in contact with exposed rocks containing sulfur-bearing minerals causing highly acidic water
- 10. a substance that destroys insects
- 13. An ecosystem flooded by water, provides for water loving plants and soggy soils
- 14. A wetland that is often covered with water and dominated with woody vegetation
- 15. Organisms such as the larvae and nymphs of insects crawfish, worms and clams which spend their lives or part of their lives in water
- 18. Substance that may leek into an ecosystem and harm organisms
- 21. The supply of water to land or crops to help growth
- 22. Waste water
- 24. A substance that is toxic to plants
Down
- 1. Carried by rainwater and surfaces to rivers and streams
- 2. chemical that kills fungi
- 3. organisms living in rapid moving fresh water
- 5. An area of land that drains all the streams and rainfall to a common area
- 8. zone The area is part of a sea, lake or river that is close to the shore
- 9. The science, or art, of cultivating the soil, producing crops, and raising livestock
- 10. Zone The deep zone of a inland body of water such as a lake or pond. Located below the range of effective light penetration
- 11. The practice of growing the same crop each year on a given plot of land
- 12. Soil that is not nutrient enough for plants to grow.
- 16. Zone The lowest zone in a body of water
- 17. zone An open and well lit area of freestanding water, like a lake or pond.
- 19. Rotation The practice of planting different crops sequentially on the same plot of land to improve soil health
- 20. Water Water present beneath the Earths surface
- 23. organisms living in still fresh water