Re-Cycling Will Be Great

123456789
Across
  1. 3. Not harmful to the environment.
  2. 4. A resource that can be naturally replaced over time.
  3. 7. The ability to maintain something over time without harming the environment.
  4. 8. To treat waste material so it can be used again.
Down
  1. 1. Able to be broken down naturally by microorganisms.
  2. 2. The protection and preservation of natural resources.
  3. 5. In a way that relates to the natural world.
  4. 6. Using more than necessary; not efficient.
  5. 8. A supply of something useful, like water or energy.
  6. 9. The presence of harmful substances in the environment.