Across
- 2. production without the use of chemicals
- 4. Energy whose source never runs out
- 6. a site where waste is collected and isolated
- 7. Unwanted useless material which people throw away
- 8. it is the increase in the average temperature of the earth
- 9. the opposite of increase
- 11. when harmful substances contaminate the environment
Down
- 1. able to break down into very small parts naturally
- 3. convert waste into reusable material
- 5. a plant or an animal that is in danger of extinction
- 9. intended to be thrown away after one use or a few uses
- 10. finish