Health

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Across
  1. 3. indicate or show that one is not willing to do something.
  2. 5. is the second layer of the atmosphere.
  3. 10. caused by rainfall or snowmelt moving over and through the ground.
  4. 11. a waste treatment process that involves the combustion of organic substances contained in waste materials.
  5. 14. occurs when an excess organic matter, such as manure or sewage enters the water.
  6. 15. high energy particles into the air, water, or earth as a result of human activity.
  7. 19. is not directly emitted as such, but forms when other pollutants reacts in the atmosphere.
  8. 21. portion of carbon dioxide in the atmosphere that is produced directly by human activities.
  9. 24. is the chemical compound with the formula SO2, a toxic gas with a punget and irritating smells.
  10. 26. is the process of converting waste materials into new materials and object.
  11. 27. is a colorless, odorless, and tasteless gas that is slightly less dense than air.
  12. 28. is an inorganic molecule with the chemical formula O3.
  13. 30. a substance that pollutes something, especially water or the atmosphere.
Down
  1. 1. includes acidity caused by industrial discharges.
  2. 2. any single identifiable source of pollution from which pollutants are discharged.
  3. 4. excessive richness of nutrients in a lake or other body of water.
  4. 6. are microscopic solid o liquid matter suspended in the Earth's atmosphere.
  5. 7. that can be floated.
  6. 8. nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, fluorine.
  7. 9. it is the main constituent of natural gas.
  8. 12. recoverable materials that are organic in nature, can be recovered through composting and digestion.
  9. 13. household.
  10. 16. a site for the disposal of waste materials.
  11. 17. an air pollutant emitted directly from a source.
  12. 18. includes any technique or method of minimizing the input of energy to overall system.
  13. 20. is a type of radiation that is produced by the sun and some artificial sources.
  14. 22. group of gases that are composed of nitrogen and oxygen.
  15. 23. to bring down to a smaller extent, size, amount, number, etc.
  16. 25. are individual metals and metal compounds that negatively affect people's health.
  17. 29. ambient.