Across
- 2. A clear liquid, vital for all forms of life
- 3. Forest clearance
- 5. Home planet
- 8. After each use, turn off and ____ your electrical appliances
- 10. Process of converting waste materials into new materials and objects
Down
- 1. ____ effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat
- 4. What is the biggest type of pollution?
- 6. 3Rs : _____, reuse & recycle
- 7. Use _____ energy such as solar power, wind, hydro and etc.
- 9. Introduction of harmful materials into the environment