Sustainability

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Across
  1. 3. _______Energy sources are better for the environment
  2. 5. All forms of debris and pollution come from outside sources that did not originate within this ecosystem
  3. 6. Humans need _______ to breathe
  4. 8. _______Fuels are not renewable and are not clean energy sources
  5. 10. To use something again is to _______
  6. 12. Able to be broken down by living organisms such as bacteria
  7. 13. To reclaim parts of materials and make use of them in a different way is to _______
Down
  1. 1. Planting _______ helps to make clean air for us to breathe
  2. 2. To use less of something is to _______
  3. 4. When you throw trash on the ground you are _______
  4. 6. Pollution in the air is leading to a hole in the _______ layer
  5. 7. Food scraps can be put in the _______
  6. 9. Able to be maintained at a certain level or rate
  7. 11. Its important to reduce our _______ usage