The Green Crossword

1234567891011
Across
  1. 2. When mixed with air, ______ creates the energy to run an engine.
  2. 6. Helps feed the world's plants.
  3. 8. dihydrogen monoxide.
  4. 9. Gravity has this.
  5. 10. An all wheel drive, easy to use, do everything lawn mower.
  6. 11. A device used to cut the top off of small leaves.
Down
  1. 1. A big ball of swirling gas near earth.
  2. 3. Power to all four wheels.
  3. 4. a 2009 American science fiction superhero thriller film directed by Paul McGuigan
  4. 5. What plants do after photosynthesis
  5. 7. Hair is to humans as ______ is to dirt.