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What did the Aztec do to keep farmland fertile?
O They used the canals to water crops daily.
They planted crops once a year.
O They rotated certain crops regularly.
O They planted certain crops once.

Respuesta :

i think the first option is the correct answer. they used canals to water crops daily.

Answer: C - They rotated certain crops regularly

Explanation:

I just got it correct on the assignment.

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