Across
- 2. waste material or things that are no longer wanted or needed
- 5. damage caused to water, air, etc. by harmful substances or waste
- 6. earth planet that humans live
- 7. the invisible gaseous substance surrounding the earth,
Down
- 1. an important topic or problem for debate or discussion
- 3. the action or process of converting waste into reusable material.
- 4. a container, typically made of glass or plastic and with a narrow neck, used for storing drinks or other liquids