ENVIRONMENT SUSTAINBILITY

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Across
  1. 3. compound of hydrogen and oxygen
  2. 6. harmful substances
  3. 7. standard-based sequence of planned experience
  4. 8. variability of life on earth
  5. 10. all living and non-living things
  6. 11. creating functional things from old unused
Down
  1. 1. unwanted or unusable materials
  2. 2. not environmentally hazardous
  3. 4. ability to understand ecological systems.
  4. 5. the ability to do work.
  5. 9. converting waste into useful new things