Environment

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Across
  1. 6. bird which lays the largest egg
  2. 7. mixture of decaying organic matter
  3. 8. destruction of forests
  4. 12. substance that repels or kills plant or animal pests
  5. 14. the driest biome
  6. 15. area designated to receive household garbage
  7. 17. largest plant family
  8. 18. fastest cat in the world
  9. 19. the wave energy released by earthquakes
Down
  1. 1. most abundant element found in air
  2. 2. underground layer of water-bearing permeable rock
  3. 3. opening in the earths crust from which lava flow
  4. 4. the worlds largest biome
  5. 5. substance that makes plant green
  6. 9. the worlds cleanest country
  7. 10. system comprising ecosystems and organisms
  8. 11. offspring of male donkey and female horse
  9. 13. any substance that evaporates quickly
  10. 14. extended period of no water
  11. 16. sweet liquid inside a flower
  12. 18. chemical substance contained in all plants and animals
  13. 19. mixture of smoke and fog