Natural Resources !!CROSSWORD!!

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Across
  1. 4. plants converting raw materials into obtainable food for plants.
  2. 5. greenhouse gas-CH₄
  3. 8. Dead organisms combining with soil.
  4. 10. Depletion of soil
  5. 12. Losing of water in plants.
  6. 13. O₃
  7. 14. they are talking about sequences of events that repeat themselves in a scientific way.
  8. 15. This is the process of warming of the earths surface due to to greenhouse gases.
  9. 19. Turning of gas into liquid form.
  10. 20. A process by which O2 is released and CO2 is released.
Down
  1. 1. the scientific process of rain
  2. 2. living organisms
  3. 3. Symbiotic bacteria present in plants.
  4. 6. N
  5. 7. Process by which O2 is burned and CO2 is burned.
  6. 9. Greenhouse gas-CFC
  7. 11. A cycle in which gaseous cycle and sedimentary cycle are its types.
  8. 16. O2
  9. 17. The heating of the earths surface due to the greenhouse effect.
  10. 18. Liquid turning into gaseous form.