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| study of the earth in all its variety |
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| individual features of the land, such as mountains and valleys |
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| another group of satillites traveling around the earth |
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| Global Positioning System |
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| helps geographers gather many different kinds of imformation about the same place |
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| geographic Infromation Systems |
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| tools, pottery, paintings, weapons, and other items |
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| remains of humans or human fossils |
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| Earth, 8 other planets, and thousands of smaller bodies |
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| planets own paths around the sun |
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| the layer of air surrounding Earth |
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| imaginary line that runs through Earth's center between the North and Sout poles |
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| complete orbit around the sun |
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| a yeart that has an extra day |
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| day with most hours of sunlight |
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| day with fewest hours of sunlight |
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| when day and night are of equeal length in both hemispheres |
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