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Across 1. Where an animal lives: its home and its surroundings. 7. Cutting down many trees. 9. A plan for saving and spending money. 11. A place where garbage is burned. 13. Describing an animal species that is almost extinct. 16. Clothes; cotton, polyester etc. 18. A negative person who feels that the future is dark. 20. A place where garbage is thrown away. 21. Describing an animal species that has completely died out and disappeared from the earth. 22. Make illegal. 'We should _______ smoking in restaurants'.

Down 2. The range of a species; the number of species in a group. 3. Can be turned into compost after use. 4. Animals and plants living together and supporting each other. 5. Waste, rubbish. 6. The action of insects moving from flower to flower. 8. Paper or plastic used to wrap gifts. 10. Buildings and equipment that make our lives more convenient. 12. With a duty to take care. 'We are all _____________ for the well-being of our planet'. 14. Eat, use. 'We ___________ too much of the earth's resources. We must use less.' 15. A cheerful person who feels positive about the future. 17. A cold-blooded animal like a crocodile or snake. 19. A warm-blooded animal that has hair and feeds milk to its babies.