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Home Q & A Board Science-Related Homework Help Psychology
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colleen colleen
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10 years ago
   What key technological development about 5,000 years ago allowed for reliable agricultural surpluses to be produced?
a.    domesticated animals
b.    the invention of the plow
c.    the cultivation of rice and potatoes
d.    irrigation
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padrepadre
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10 years ago
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colleen Author
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10 years ago
Thx so much!!

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