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Across 2. an area of land with unique features as well as distinct plants and animals 3. an elevated landform so flat on top it looks like a table 5. 0 degrees line of longitude. Runs through Greenwich, England, divides the world into eastern and western hemispheres 8. a stream of smaller river that flows into a river or lake 11. an understanding of event and people based on the accepted ideas and values of the time period being studied 14. a deep, water-filled, canyon 15. a treeless area covering more than 30,000 miles in NM and Tx 17. a boundary or area of high ground separating rivers and makes them flow in opposite directions 18. two-dimensional representation of the earth 20. the measurement of distance east and west of the Prime Meridian 21. the process of changing to fit some purpose or situation 22. an area of land controlled by its own government 23. a landform characterized by tis fields of dried lava 25. the city 26. the description of where a place is in relation to other places or things 28. a natural or manmade pond or lake used for storing water 31. the measurement of distances north and south of the equator 32. the study of human populations (size, growth, density) 33. the movement of weathered materials. 34. the study of the earth and everything on it 36. an elevated area of mostly flat land, usually extending from a mountain range. 37. geographic information system

Down 1. an object made by people or used in the past 4. the exact position of a place using longtitude and latitude coordinates 5. geography dealing with the exterior and physical changes of the earth 6. one-sided point of view 7. an advanced culture 9. something a country has and can use to increase its wealth 10. similar to a mesa but smaller 11. a firsthand, or eyewitness, account, or an original object or document from the past. 12. the average numver of people living in a measurable area 13. a secondhand account of an event 16. spoken history 19. halfo fo the earth 24. one of seven large landmasses 27. the conditions surrounding someone or something 29. the country 30. a land division based on common features 35. global positioning system