Environment

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Across
  1. 5. A community of living organisms and their environment.
  2. 6. Study of the relationships between organisms and their environment.
  3. 7. Process of reusing materials to reduce waste.
  4. 9. Element found in fossil fuels and a key
  5. 11. The variety of life in a particular ecosystem.
  6. 14. Capable of being maintained without depleting resources.
Down
  1. 1. Device that converts wind energy into electricity.
  2. 2. Vast body of saltwater.
  3. 3. Contamination of the environment by harmful substances.
  4. 4. Decayed organic matter used as fertilizer.
  5. 8. Release of gases or pollutants into the atmosphere.
  6. 10. A dense area with a variety of trees and wildlife.
  7. 12. Energy harnessed from the sun.
  8. 13. Animals living in their natural habitat.