Across
- 4. A poisonous substance that damages health or the environment.(two words)
- 7. To reduce as much as possible
- 9. To destroy a forest by cutting down all the trees
- 15. Energy that is produced using sun, wind, etc., or from crops, rather than using fuels such as oil or coal.(two words)
- 16. To share a car instead of driving one alone.
- 19. To become less or to make something become less.
- 21. The act of keeping something the same or of preventing it from being damaged.
- 24. The activity of of making new furniture, objects, etc. out of old or used things or waste material.
- 26. The protection of wild animals from the damaging effects of human activity.(tow words)
- 28. To use more than necessary, or to use inefficiently.
- 30. A measurement of the amount of carbon dioxide a person adds in the atmosphere.
- 31. Using double-glazed windows to keep houses warm in the winter and cool in the summer-insulating the exterior of the house will save energy.(two words)
- 33. The complex system of relationships between living things and their environment.
Down
- 1. The order in which organisms in an ecosystem eat one another(two words)
- 2. A gas that's released when carbon is burned or when people or animals breathe out.(two words)
- 3. Use public transport or electrical cars.
- 5. The natural environment in which an animal or plant usually lives.
- 6. Which are the three Rs?(three words)
- 8. The gradual increase in world temperatures that is caused by high levels of carbon dioxide emissions.(two words)
- 10. The fact of a person, organization, etc. continuing to live or exist.
- 11. Rain that contains amounts of harmful chemicals as a result of burning substances such as coal and oil.(two words)
- 12. Damage caused to water, air, etc. by harmful substances or waste.
- 13. To continue to exist when other parts or things no longer exist.
- 14. The act of collecting and storing plant material so it can decay and be added to soil to improve its quality.
- 17. An area of land kept in its natural state, especially for wild animals to live in and be protected.
- 18. To give money or goods to an organization you want to help or support.
- 20. The feature of the wwf (World Wide Fund for Nature) symbol.
- 22. The fact of something or someone existing.
- 23. To chase and try to catch and kill an animal or bird for food, sport or profit.
- 25. Not allowed by law.
- 27. To become smaller in size, amount, degree, importance, etc.
- 29. ...animals-that are threatened with extinction as a result of human activity
- 32. A thick dirty cloud at ground level caused by pollutants react to the sunlight.