Across
- 3. Variety of life in an ecosystem
- 8. Cutting down of forests
- 9. Reuse materials to reduce waste
- 11. Layer trapping heat in Earth’s atmosphere
- 13. Harmful substances in the environment
- 15. Rise in Earth’s average temperature
Down
- 1. Long-term shift in weather patterns
- 2. Using resources without depleting them
- 4. Nonrenewable energy source from ancient remains
- 5. Rain made acidic by air pollution
- 6. A potent greenhouse gas from livestock
- 7. Energy Renewable energy from the sun
- 10. fossil fuels
- 12. Pollutants released into the air
- 14. Layer Shield protecting Earth from UV rays