earth day

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Across
  1. 3. you need it to grow plants
  2. 5. nitrogen is made of oxogen and ____
  3. 7. our planet
  4. 8. used as plant fertilizer
  5. 9. we rotate around it
Down
  1. 1. april 22 of every year
  2. 2. you throw it out(most of the time)
  3. 4. green stuff on the ground
  4. 6. pet or friend?