Sing for Earth Day

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Across
  1. 4. First name of singer of "Big Yellow Taxi"
  2. 5. what we breathe
  3. 6. a pollution-free way to get around
  4. 8. the river Pete Seeger helped to clean up
  5. 9. impurities, chemicals, and trash are examples
  6. 10. the holiday we celebrate to honor the planet
Down
  1. 1. Last name of folk singer Pete
  2. 2. Last name of "Big Yellow Taxi" singer
  3. 3. we can swim in this when it is clean
  4. 6. the instrument Pete Seeger played
  5. 7. the most common instrument used to lead group singing.
  6. 9. First name of folk singer Seeger