THE CRAYONS SAVED THE EARTH

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Across
  1. 2. Low-quality items
  2. 3. They float in the air high above the Earth's
  3. 7. A stick of colored wax
  4. 9. Is the third planet from the Sun
  5. 10. Are large, intelligent marine mammals
Down
  1. 1. A multicolored arc
  2. 4. To write or draw something very quickly
  3. 5. To move unsteadily from side to side
  4. 6. An open area of habitat covered by grass
  5. 8. Trash thrown on the ground