Across
- 3. hard, usually clear substance used, for example, for making windows and bottles. It is also easy to recycle.
- 4. small pieces of rubbish
- 6. a person who does not eat meat or fish
- 8. the process of making air, water, soil, etc. dirty
- 10. a mixture of destroyed by natural processes plants, food, etc. that can be added to soil to help plants grow
- 11. air that moves quickly as a result of natural forces. it is also used to produce clean electricity
- 13. a natural flow of water that continues in a long line across land to the sea. we should keep them clean
- 15. a plant or part of a plant that is eaten as food. they are healthier than meat
- 18. the process by which green plants turn carbon dioxide and water into food using energy obtained from light from the sun.
- 19. tall plant that can live a long time. we need to plan more of them
Down
- 1. water that falls from the sky in separate drops
- 2. hard material that can be converted in small pieces of rubbish that take long to decompose
- 5. stiff material like very thick paper, often used for making boxes. it is easy to recycle.
- 7. activity that help us being fit and healthy
- 9. sun in Spanish
- 12. water that covers the entire city, happens rarely
- 14. things put in the bin than can be used again
- 16. type of car engine that produces low carbon dioxide.
- 17. mall soft white pieces (called flakes) of frozen water that fall from the sky in cold weather