Crossword Puzzle Chapter 4 'Creating a sustainable world'

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Across
  1. 3. Growing a single type of crop
  2. 6. A greenhouse gas that cars produce
  3. 9. The area needed to produce our food
  4. 11. Farming without fertilizer (=kunstmest) or pesticides
  5. 12. Products which can be recycled
  6. 13. The maximum area we can use without damaging the Earth
  7. 15. Energy sources that are not renewable (for example oil and natural gas)
  8. 16. The diversity in plants and animals
  9. 17. Energy that is renewable (for example solar energy and wind energy)
  10. 18. Change from fossil fuel to green energy
Down
  1. 1. Things that can be used again and again
  2. 2. Changing the DNA of a plant so it will increase its yield (=opbrengst)
  3. 4. Having no negative impact on the climate
  4. 5. Increasing how many crops you place on a field or increasing the amount of animals in a farm
  5. 7. The area needed to provide everything a person needs
  6. 8. All steps in the production process of a certain good
  7. 10. Reusing products
  8. 14. An economy in wich a lot of resources are being recycled