Earth day
Across
- 5. the act of conserving
- 6. the branch of biology dealing with the relations and interactions between organisms
- 8. the aggregate of surrounding things, conditions, or influences
- 9. designed for or capable of being thrown away after being used
- 10. the ability to be sustained
- 12. a colorless, odorless, flammable gas
- 13. not able to be restored
- 14. discarded matter
Down
- 1. a mixture of various decaying organic substances
- 2. an act or instance of disposing
- 3. capable of decaying through the action of living organisms
- 4. the act or process of keeping something in existence
- 7. to convey pollen to the stigma of a flower
- 11. the natural environment of an organism