Environmental challenges

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Across
  1. 2. number of inhabitant in one place
  2. 3. using something one more time
  3. 5. disappear(synonym)
  4. 7. Mitwirkender
  5. 8. art of animal
Down
  1. 1. unbewohnbar
  2. 4. reduce(synonym)
  3. 6. drough(antonym)