Earth Day Crossword puzzle

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Across
  1. 3. place to dispose of waste materials by burying it and covering with soil.
  2. 6. All around us
  3. 7. April 22
  4. 8. Good for the environment
Down
  1. 1. turning off lights conserve...
  2. 2. Please put your trash in the trashcan. Don't...
  3. 4. earth is are...
  4. 5. large body body of water