Natural Resources Crossword Puzzle(Kamal)

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Across
  1. 2. loss of water through plants
  2. 4. what we release and plants breathe
  3. 6. harmful materials in the environment
  4. 10. cutting down of trees
  5. 13. burning of fossil fuels
  6. 14. liquid turns into vapor
  7. 15. present in atmosphere in 21%
  8. 18. process where organic forms of nitrogen are converted to NH4+
  9. 19. to nitrite and nitrate
  10. 20. process that allows plants to make food
  11. 21. most abundant gas
Down
  1. 1. reduced nitrogen compound are sequentially
  2. 3. falls in form of rain
  3. 5. continuous movement of water within the Earth and atmosphere
  4. 7. vapor turns into liquid
  5. 8. breathing
  6. 9. bacteria
  7. 11. impact of water or wind detaches and removes soil particles, causing the soil to deteriorate
  8. 12. process of reducing nitrate and nitrite to gaseous forms of nitrogen
  9. 16. body of dead organisms is degraded to soil
  10. 17. process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere