Earth Day

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Across
  1. 2. the weather in some location averaged over a period of time
  2. 4. contamination of the natural environment
  3. 8. a mixture of decaying vegetation and manure
  4. 10. capable of being decomposed
  5. 11. use again after processing
Down
  1. 1. the state of being no longer in existence
  2. 3. a densely wooded tropical area with heavy precipitation
  3. 5. warming, a rise in the average temperature of the earth's atmosphere
  4. 6. a forceful consequence; a strong effect
  5. 7. a colorless gas that is a screen for ultraviolet radiation
  6. 9. major ecological community with distinct climate and flora