Across
- 2. Its a main greenhouse gas.
- 3. Any form of precipitation with acidic components
- 7. A building with glass walls and a glass. roof
- 9. Liquid waste.
- 10. Main source of pollution.
Down
- 1. Heating of earth.
- 4. It protects us from harmful sun rays.
- 5. These are types on non renewable resources.
- 6. Toxic substance that pollute environment
- 8. Limited resources are also called ________