Environment

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Across
  1. 5. any basic substance that is used in or produced by a reaction involving changes to atoms or molecules
  2. 6. the activity of treating materials or products using a special industrial process so that they can be used again
  3. 7. a long period when there is little or no rain
  4. 8. unwanted matter or material of any type, especially what is left after useful substances or parts
  5. 9. an amount of something that is used, or the process of using something
  6. 10. the cutting down of trees in a large area, or the destruction of forests by people
Down
  1. 1. a situation in which something no longer exists
  2. 2. a reduction in something
  3. 3. the air, water, and land in or on which people, animals, and plants live
  4. 4. decaying plant material that is added to soil to improve its quality