Earth Day

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Across
  1. 2. area of cold air around Earth's poles
  2. 6. stop
  3. 8. corrosive
  4. 10. CO2
  5. 11. what people breathe
  6. 13. to move from one place to another
  7. 14. when you give up something
  8. 15. when you keep something the way it is
Down
  1. 1. mass chopping down of trees
  2. 3. government program for renewable energy
  3. 4. able to continue/keep up
  4. 5. to work together
  5. 7. Nelson The senator that created Earth Day
  6. 9. to motivate or encourage
  7. 12. gas/coal/petroleum