Question

What most Tribute it to the strength of ancient Chinese dynasties?

A. Maintained good farmland by managing the rivers.
B. They kept Outside invaders from crossing the Himalayas.
C.They protected the grassland so that they stayed green for herding.
D. They guarded the seas so that the outsiders could not invade the coasts.

Answer 1

its A :They maintained good farmland by managing the rivers. i hope this helps and have a good day :-)

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