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