Crossword on Biodiversity Change and Sustainability

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Across
  1. 4. Organism like fungi or bacteria that breaks down dead matter.
  2. 7. Complete removal of pests like American iguanas.
  3. 11. Essential substances plants need to grow, found in rich soil.
  4. 13. This kind of diversity refers to differences in DNA of organisms.
  5. 14. Human activity like farming that affects ecosystems if not managed well.
  6. 15. Wearing away of soil by wind or water.
  7. 17. A community of living things and their environment.
  8. 21. Natural process where materials like water or nutrients are reused in the environment.
  9. 22. Protects our borders from pests and diseases.
  10. 23. A group of similar organisms that can breed and produce young ones.
  11. 25. Biosecurity officers do this to control what enters the country.
  12. 27. Keeping out foreign plants or animals to stop spread of disease.
  13. 28. Documents that prove items for export/import are safe.
  14. 33. Catching too many fish before they can grow and breed.
  15. 34. Water present in the air or soil; keeps plants healthy.
  16. 35. Essential for all life; natural vegetation helps keep it clean.
Down
  1. 1. Weather conditions over a long period in an area.
  2. 2. Long period with little or no rainfall.
  3. 3. Some of this comes from plants and animals in diverse ecosystems.
  4. 5. Ability of animals to blend in and avoid being seen.
  5. 6. Variety of living things in an area like rainforest or coral reef.
  6. 8. Clearing of trees, often for farming or buildings.
  7. 9. Organism that lives on or in a host, may cause harm.
  8. 10. Plants in a particular area, especially natural ones.
  9. 12. Happens when water overflows the land that’s usually dry.
  10. 16. Can spread from foreign species and harm local biodiversity.
  11. 18. Harmful substances that dirty the air, water or soil.
  12. 19. Areas full of trees that help in rainfall and absorb greenhouse gases.
  13. 20. A plant or animal found only in a particular place like Fiji.
  14. 24. Natural home or environment of a plant or animal.
  15. 26. Provides support and nutrients for plants; formed by broken-down rocks and decaying matter.
  16. 29. Rainwater that flows over land instead of soaking into the ground.
  17. 30. Type of species like African tulip or tilapia that causes harm in new environments.
  18. 31. Cutting down trees in forests, sometimes illegally.
  19. 32. Biodiversity provides this for many organisms to survive.