Across
- 1. Energy that can be naturally replenished
- 3. ___ energy is a potential renewable energy option for Singapore
- 6. Turning trash into new products
- 7. Carbon _____ is how much carbon dioxide you produce in your daily life
- 8. Any material which is discarded after primary use
- 11. Burning ____ fuels is a major source of air pollution
- 12. Sewage, pesticides, floods, and factories leads to ____ pollution
- 13. Site for the disposal of waste materials
- 14. Prevention of wasteful use of a resource
Down
- 2. Variety of life on Earth
- 4. The most important "R" in leading a low-carbon lifestyle
- 5. Clearing of forested land
- 9. ____ change is defined as unstable and unpredictable weather patterns of a given location
- 10. Methane gas and CFCs can destroy the ____ layer
- 13. Mining, farming, and factories leads to ____ pollution