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Across 4. the study of relationship between living things and their environment 5. The phenomena of the physical world collectively, including plants, animals, the landscape, and other features 9. professional associations, religious groups, labor unions and citizen advocacy organizations are examples of ,,,,,,,,,, 10. Life on earth would be impossible without it. 11. One of the most devastating catastrophes which took place in December 2004 13. helping those who are in need 14. A great harm or damage which are either natural or man-made.

Down 1. To make living 2. wind, solar and hydroelectric power are all ........ energy sources 3. any non-profit, voluntary citizens' group which is organized on a local, national or international level is called ..... 6. helping or influencing people to explore their abilities to improve their lives 7. Producing and coming up unusual ideas which are helpful 8. The act of helping people or doing good to improve quality of life without expecting reward or glory in return.. 12. A sum of money saved, collected or provided for a particular purpose e.g building a road