Which of the following is not an effect of the creation of chinampas on the aztec civilization

I'm not sure i'm sorry

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.

The bottom part thats where most farming goes on

Aray has one endpoint and extends indefinitely in one directions.