Environment presevation

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Across
  1. 2. the way in which animals and plants arerelated to each other
  2. 3. the state of making water, air dirty
  3. 5. reduction of the amount of something
  4. 6. tropical forest with tall trees
  5. 7. animals
  6. 8. home of plants or animals
  7. 9. protection from damage
Down
  1. 1. burning or cutting down trees
  2. 4. plants
  3. 5. land changing into a desert