Environment

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Across
  1. 4. to throw rubbish everywhere.
  2. 6. power that we use to run our devices.
  3. 7. something which is poisonous.
  4. 12. the types of plants and animals that exist in the world.
  5. 14. to economize in the consumption of the world resources.
  6. 15. to take air into lungs and then expel it.
Down
  1. 1. all living creatures in an area and the way they affect each other.
  2. 2. the contamination of the environment.
  3. 3. to squander.
  4. 5. to reuse something.
  5. 8. dioxide a gas produced when we breathe.
  6. 9. an area which is covered by trees.
  7. 10. dry, arid area with little plants.
  8. 11. very long stream of water.
  9. 13. capable of being renewed.