Ecological footprint

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Across
  1. 2. to help or assist
  2. 7. to decrease an amount
  3. 10. materials from the environment
  4. 12. making or manufacture of an item or material
  5. 15. biotic surroundings
Down
  1. 1. the way someone lives
  2. 3. to use a material again
  3. 4. something (eg plastic) introduced to the environment that has a harmful effect
  4. 5. to eat or induce something
  5. 6. decaying organic matter used for fertilizing
  6. 8. heat energy is a form of ______
  7. 9. to fail to use materials, not put to good use
  8. 11. in the environment trees and animals are part of it
  9. 13. when you need something it is a _____
  10. 14. affect on something