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Social Studies, 21.09.2020 04:01 brainist71
A common element among all the river valley civilizations was:
A) irrigation systems that moved water to crops and settlements
B) developed written materials
C) developed plumbing systems
D) the worship of leaders as gods
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Answers: 3
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A common element among all the river valley civilizations was:
A) irrigation systems that moved wa...
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