GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What do the items on this list have in common? harrowfertilizerchain pumpterraces
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They came from Mongolia
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They increased crop yield
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They were the result of cultural change
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They were the cause of migration.
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Explanation:
Detailed explanation-1: -Historians typically consider the following dynasties to have unified China proper: the Qin dynasty, the Western Han, the Xin dynasty, the Eastern Han, the Western Jin, the Sui dynasty, the Tang dynasty, the Wu Zhou, the Northern Song, the Yuan dynasty, the Ming dynasty, and the Qing dynasty.
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