Across
- 2. pollution that comes from one specific site or source.
- 3. pollution that comes from many smaller sources
- 4. rain, sleet, snow, or hail formed with acidic water
- 5. removal of trees and other vegetation from an area
- 9. a body of water that forms behind dams
- 13. pollution from chemicals
- 15. tiny particle of solid that is suspended in air or water
- 18. process by which human activity and natural processes damage land to the point that it cannot support life.
- 19. formed when ground level ozone and vehicle exhaust react in the presence of sunlight
- 20. increase in the amount of nutrients in water
Down
- 1. pollution when live or dead organisms are added to water supplies
- 6. body of rock or sediment that can store a lot of water.
- 7. heating of natural water that results from human activity
- 8. contamination of the atmosphere from human activity
- 10. when waste or other material is added to water so that it is harmful to organisms that use it or live in it.
- 11. the growth of urban areas caused by population growth
- 12. the wise use of natural resources
- 14. the way certain gasses absorb and radiate heat back to earth
- 16. the careful and responsible management of a resource.
- 17. land becomes more like a desert
- 21. water suitable to drink