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Across 3. The longest river in Europe, and Russia's most commercial river 4. A long mountain range along the west coast of South America. 9. A major river in Europe; it begins in Switzerland and flows North to the North Sea. 11. A great mountain system in central Europe. 14. The second-largest river in Europe; it flows from Germany east to the Black Sea. 16. The world's largest desert; it dominates much of NorthAfrica. 17. The that is in England, and it flows throught London. 18. A major river in the United States. 19. A major river in Southwest Asia; with Euphrates River it defined"the land between the river" known as Mesopotamia.

Down 1. A major mountain range in the western North America.It runs through Canada and the United States. 2. It winds throught the heart of Paris. 5. The highest mountains in the world; They separate the subcontinent from China. 6. The major river in South America. 7. The longest river in the world; located in NorthAfrica. 8. A mountain range in Russia that separates Europe and Asia. 10. A large region of plains and grasslands in central North America. 12. A river in Southwest Asia. 13. A major river in Northern India. 15. A body of water between NortheasternChina and the Korean Peninsula.