Across
- 5. Gradual warming of earth's surface temperature caused by the emission of gases that trap the sun's heat in the earth atmosphere.
- 6. Sun energy
- 8. Conversion of forested areas to non-forest land for agriculture, urban use, development, or wasteland.
- 10. The natural home or environment of an animal, plant or other organism
- 12. The feeding relationships between species within an ecosystem.
Down
- 1. A biological community of interacting organisms and their physical environment.
- 2. Odourless gas that is present in the earth and necessary to maintain life
- 3. Prevention of wasteful use of a resource.
- 4. Contamination of the earth
- 7. to treat things that have already been used so they can be used again
- 9. 22nd April
- 11. One of the aims of Green Society is to spread awareness of protecting the ____________.