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OpenStudy (ironhide):
Please help! You can guess between the two if you want, ahhh. Which of the following was critical in the development of large ancient civilizations in South America? a - expertise in hunting and fishing b - domestication and cultivation of corn c - trade between different civilizations d - development of roads and bridges e - study of mathematics and astronomy B or C?
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OpenStudy (ironhide):
It's B
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