Environment

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Across
  1. 2. An accumulation of garbage
  2. 4. Ruin
  3. 6. An implement of war
  4. 7. Make the water, the air and the atmosphere dirty
  5. 8. An unsafficient amount of something
  6. 9. A substance capable of causing death
Down
  1. 1. Pertaining to the atom
  2. 3. People living on a particular territory
  3. 5. Gases produced by cars
  4. 6. Useless leftovers