Earth Day: Save the planet!

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Across
  1. 1. oil spills in the ocean is a type of
  2. 5. smoke from factories is a type of
  3. 6. A resource that can be replaced naturally (like sunlight or wind)
  4. 8. natural home from plants and animals
  5. 9. A material that takes a very long time to break down
  6. 11. The usual weather conditions of an area over time
  7. 12. cut back on using water and electricity to protect resources
  8. 15. A gas in the air that humans and animals need to breathe
  9. 17. processing waste materials to make new materials
  10. 18. Trash left lying on the ground
  11. 19. Harmful substances added to the environment
  12. 20. Decayed organic matter used to help plants grow
Down
  1. 2. A place where trash is buried
  2. 3. earth day is on the 22nd of which month
  3. 4. cutting down large areas of forest
  4. 7. Unwanted or unused materials
  5. 10. throwing trash out your car window is a type of
  6. 11. An element found in carbon dioxide that affects Earth’s temperature
  7. 13. when animals are at a large risk of disappearing forever
  8. 14. Energy that comes from the sun
  9. 16. car exhaust releases this harmful substance into the air