Across
- 3. A place where garbage is buried under the ground
- 4. To repurpose or transform old or discarded materials into something of higher value or quality
- 7. Using resources in a way that meets present needs without harming the ability of future generations to meet their needs.
- 8. To keep something in its original state or condition, often to prevent decay or damage
- 10. To protect and use resources carefully to prevent waste or harm
- 11. Trash or waste that is left in public places.
- 13. A colorless gas in the Earth's atmosphere that absorbs most of the sun's harmful ultraviolet radiation
- 15. To process used materials in order to make them suitable for reuse
- 18. Gases or particles released into the air, often from vehicles or factories.
- 19. Relating to the sun
- 20. The natural environment or home of an organism, where it lives and grows
Down
- 1. Relating to or derived from living matter; often used to describe natural farming methods without synthetic chemicals.
- 2. a layer of gases surrounding our planet
- 5. To make the environment dirty or harmful by adding harmful substances or waste
- 6. The study of the relationships between living organisms and their environment
- 9. The surroundings or conditions in which a person, animal, or plant lives or operates
- 12. Capable of being replaced or replenished naturally over time, especially regarding energy sources
- 14. No longer existing; describes a species that has died out completely.
- 16. Decomposed organic matter used to improve soil.
- 17. A community of living and non-living things interacting in a particular area.