Earth & Its Conservation

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Across
  1. 3. A resource that cannot be replaced quickly
  2. 7. Underground layer of water-bearing rock
  3. 9. Process plants use to convert sunlight into energy
  4. 14. Material that can be broken down by nature
  5. 16. A community of interacting living organisms and their environment
  6. 17. Decayed organic material used as fertilizer
  7. 18. Gas essential for breathing
Down
  1. 1. Forest loss due to cutting trees
  2. 2. Protecting the environment
  3. 4. The long-term weather patterns in an area
  4. 5. The planet we live on
  5. 6. The outermost layer of the Earth
  6. 8. Using resources in a way that preserves them for the future
  7. 10. Energy from the sun
  8. 11. Natural fuel formed from ancient remains
  9. 12. Harmful substances introduced into the environment
  10. 13. To use less of something
  11. 15. To make something new from used materials