Across
- 2. noun: when farm animals eat too much grass on a large scale
- 4. adjective: something that will not run out when it is used
- 6. adjective: something good for the environment
- 8. adjective: made from something
- 10. noun: when a certain type of sea creature becomes white
- 12. noun: garbage from domestic sources
- 14. verb: to protect a natural resource
- 15. noun: gases that come from various means of transport
Down
- 1. noun: a group of chemicals that contribute to global warming
- 3. adjective: something that wastes very little electricity
- 5. noun: a very short amount of time
- 7. verb: to break down naturally without pollution
- 9. adjective: something that can be maintained for a long time
- 11. noun: when trees are cut down on a large scale
- 13. verb: to explore something related