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2
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the time before there was writing
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4
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the new stone age when people learned to make fire and tools such as saws and drills
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6
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the process of changing plants of animals to make hem more useful to humans
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7
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thew first part of the stone age when people first used stone tools
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9
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the middle part of the stone age marked by the creation of smaller and more complex tools
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11
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a strip of land connecting two continents
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1
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a community of people who share a common culture
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3
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people who hunt animals and gather wild plants, seeds, fruits, and nuts to survive
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5
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to move to a new place
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8
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a huge stone monument
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10
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long periods of freezing weather
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