Natural Crossword

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Across
  1. 3. What envolve us
  2. 5. What we throw away when we expire
  3. 8. We breath it
  4. 9. It envolve the Earth
Down
  1. 1. The reason why North Pole is melting
  2. 2. We produce it with our cars
  3. 4. Living beigns that live in the sea, forests, air.
  4. 6. Where we live
  5. 7. If we throw it to the rivers we contaminate
  6. 10. Give a second life to an object