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![]() boundary |
The border of a country
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![]() continent |
Very large land area with oceans on many sides
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![]() country |
A land region under the control of one government
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![]() equator |
The imaginary horizontal line around the center of the earth; 0 degrees latitude
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![]() geography |
The study of land, water, plants, animals, and people of a place
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![]() headwaters |
The starting place of a river
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![]() latitude |
The distance north or south of the equator
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![]() longitude |
The distance east or west of the prime meridian
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![]() prime meridian |
The imaginary vertical line throught the center of the earth; 0 degrees longitude
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![]() tributary |
A small river that flows into a larger river or body of water
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