Across
- 3. aquatic bird
- 4. One with fossil fuels
- 6. a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating.
- 7. type of energy used in turbines
- 8. A person who lives near another
- 11. Yellowstone is a.....
- 15. the gaseus envelope surrounding the earth
- 16. A famous atrctive volcano in Italy
- 17. We must protect the En...
- 21. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years.
- 22. spray-painted wall of a building
- 23. the highest mountain in Africa
- 26. animals that feed their young with milk from their body
- 28. Urban or .... area
- 29. a system formed by the interaction of a community of organisms with their environment.
Down
- 1. it contains cellulose cell walls
- 2. the animal that kill other animals
- 3. It is created by factiries
- 5. the first national park in USA
- 7. the alternative source of energy
- 9. where is the bigest volcano on the earth
- 10. the arid region
- 12. Wind power is variable and ....
- 13. a chemical substance contained in all plants and animals.
- 14. A large grouping of wind generators
- 16. the animal that is hunded and eaten by another animal
- 17. The bigest volcano in Europe
- 18. a person who destroys something beautiful
- 19. the animal who building fat reserves
- 20. a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere.
- 24. It is created by temperature increase
- 25. detahed
- 27. the vesovius was the reason that destroyed that city