Enviroment

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Across
  1. 4. The protection and preservation of the natural environment.
  2. 6. Animals and plants that live or grow in the wild.
  3. 9. The process of making something impure or poisonous.
  4. 10. Harmful or poisonous substances introduced into the environment.
  5. 11. A biological community of interacting organisms and their environment.
  6. 12. An overflow of a large amount of water onto normally dry land.
  7. 14. The variety of plant and animal life in a habitat.
Down
  1. 1. The process of converting waste into reusable material.
  2. 2. A sudden and violent shaking of the ground.
  3. 3. A large, destructive fire that spreads quickly over woodland.
  4. 4. The action of using up a resource.
  5. 5. A long period of abnormally low rainfall and water shortage.
  6. 7. The clearing or thinning of forests by humans.
  7. 8. The layer of gases surrounding the Earth.
  8. 13. A colorless gas that is necessary for most living organisms to breathe.