The Natural World

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Across
  1. 8. the removal of all trees from a large area
  2. 9. a large number, a collection
  3. 10. food
  4. 11. plants
  5. 14. the natural world
  6. 16. to cut down
  7. 17. many, numerous
  8. 18. damage to air, water, etc.
  9. 19. living in the water
  10. 20. to disappear
Down
  1. 1. living on the land
  2. 2. to reach past, get bigger
  3. 3. a strong effect
  4. 4. the natural area where a plant or animal lives
  5. 5. to catch
  6. 6. protection
  7. 7. to keep from changing, maintain
  8. 12. to prevent, slow down
  9. 13. the cutting down of trees for commercial purposes
  10. 15. loss of soil from action of water or wind