Which represents an aztec adaption to their environment?
a. a surplus of farmed crops
b. an accurate 365-day calendar
c. a system of causeways
d. farming in terraces

I would say D since Aztecs were known for agricultural farming

The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.