AP World Historymediummcq1 pt
Which development most directly increased agricultural output in Song China?
A.Adoption of champa rice and improved irrigation
B.The Columbian Exchange
C.Steam-powered tractors
D.The potato's arrival from Peru
Explanation
Core Concept
Fast-ripening rice and better water control enabled multiple annual harvests.
Correct Answer
AAdoption of champa rice and improved irrigation
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