Across
- 2. a piece of clothing, a device, etc. that warms somebody/something
- 5. interested in and concerned about the ecologyc of a place
- 8. all the plants, animals and things that exist in the universe that are not made by people
- 13. a measure of the amount of carbon dioxide that is produced by the activities of a person or company
- 14. the mixture of gases that surrounds the earth the world; the planet that we live on
- 17. a large amount of water covering an area that is usually dry
- 18. any of the gases that are thought to cause the greenhouse effect, especially carbon dioxide
- 19. the production or sending out of light, heat, gas, etc.
- 20. the world; the planet that we live on
Down
- 1. protect something to introduce laws that make it illegal to kill, harm or damage a particular animal, area of land, building, etc.
- 3. the regular pattern of weather conditions of a particular place
- 4. (of food, farming methods, etc.) produced or practised without using artificial chemicals
- 6. recycle something to treat things that have already been used so that they can be used again
- 7. to stop the flow of electricity, gas, water, etc. by moving a switch, button, etc.
- 9. the natural world in which people, animals and plants live
- 10. to add dirty or harmful substances to land, air, water, etc. so that it is no longer pleasant or safe to use
- 11. connected with the protection of the environment; supporting the protection of the environment as a political principle
- 12. any substance like air that is neither a solid nor a liquid, for example hydrogen or oxygen
- 15. to keep something to use or enjoy in the future or for somebody else to use
- 16. things that you throw away because you no longer want or need them