Earth Day Crossword Puzzle

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Across
  1. 5. What planet we live on
  2. 7. The shift of temperature and weather
  3. 9. Energy that is unlimited and naturally replenished
  4. 10. The primary greenhouse gas
  5. 11. the act of saving
  6. 12. The month of earth month
Down
  1. 1. The introduction of harmful materials into the environment
  2. 2. Energy from sunlight
  3. 3. The gases in the atmosphere that absorb heat and raise the temperature of a planet
  4. 4. The biggest pollutant collected
  5. 6. _____ planting
  6. 8. another word for waste