The Environment

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Across
  1. 3. A black, combustible mineral used as a source of energy.
  2. 5. The process of converting waste into reusable material.
  3. 6. Disposing of something as waste.
  4. 8. Overflow of water onto land that is usually dry.
  5. 9. Renewable sources of power like wind, solar, or hydroelectric.
  6. 11. Limits or rules that control an action or activity.
  7. 12. The trapping of heat in the Earth's atmosphere due to gases like carbon dioxide.
  8. 13. Energy produced by splitting atoms.
  9. 17. When a species no longer exists.
  10. 18. Using something again for the same or different purposes.
  11. 20. A prolonged period of abnormally low rainfall.
  12. 21. Trash or waste left lying around.
  13. 24. Reason or explanation for an event or situation.
  14. 26. Harvesting fish faster than they can reproduce.
  15. 27. A sudden and violent shaking of the ground.
  16. 28. Energy sources that can be naturally replenished, like wind or solar power.
  17. 30. Animals or plants at risk of becoming extinct.
  18. 32. Also known as a dump or tip, it's a place for waste disposal.
  19. 35. A film of oil on the surface of water.
  20. 37. Energy sources like fossil fuels that cannot be easily replenished.
  21. 38. Answers or ways to resolve problems.
  22. 39. Alteration in weather patterns over an extended period.
  23. 40. Energy sources formed from ancient organic remains.
Down
  1. 1. Damage to the natural home of a particular plant or animal.
  2. 2. A greenhouse gas produced by burning fossil fuels and breathing.
  3. 4. The increase in the Earth's temperature due to the greenhouse effect.
  4. 7. The introduction of harmful substances into the environment.
  5. 10. The opposite of 'to rise'; means to fall.
  6. 14. Illegal hunting or capturing of wildlife.
  7. 15. The layer of gases surrounding the Earth.
  8. 16. Another term for farming.
  9. 18. Dense forests found in warm, tropical regions.
  10. 19. Energy harnessed from the sun.
  11. 21. Materials or supplies used to accomplish tasks.
  12. 22. The average level of the surface of the sea.
  13. 23. The opposite of 'to decrease'; means to rise.
  14. 25. Using less energy to accomplish the same tasks.
  15. 29. Making something smaller or less in amount.
  16. 30. Result or consequence of a particular action or event.
  17. 31. The act of causing severe damage or ruining something.
  18. 33. To keep something safe from harm or damage.
  19. 34. Part of the atmosphere that protects us from harmful UV rays.
  20. 36. To chop trees or reduce something in size.