Environmental issues crossword

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Across
  1. 2. Type of gas causing warming.
  2. 5. Synthetic material harming oceans.
  3. 9. Polluted precipitation harming ecosystems.
  4. 10. Large-scale removal of forests.
  5. 12. Contamination of air, water, or soil.
  6. 13. Variety of life on Earth.
  7. 16. Element linked to emissions.
  8. 17. Layer protecting Earth from UV rays.
  9. 18. To keep something going without harming it.
  10. 19. Rapid growth of algae that harms water quality.
Down
  1. 1. Unwanted or unusable materials.
  2. 3. Interconnected system of life and environment.
  3. 4. Reusing materials to reduce waste.
  4. 6. Long-term weather pattern.
  5. 7. Grown without synthetic chemicals.
  6. 8. Renewable energy generated by turbines.
  7. 11. Gases released into the atmosphere.
  8. 14. Fuel Nonrenewable energy source like coal or oil.
  9. 15. Clean energy from the sun.
  10. 16. Organic waste turned into fertilizer.