Answer:
Digging of irrigation canals to irrigate their fields allowed for growing better and more crops. food surpluses allowed people to do other work than farm. this meant that they had enough food to survive in extra to trade with.
Explanation:
Hope this helped Mark BRAINLEST!!!!
The answer is B. Environmental Lapse Rate
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São 5 regiões e elas são norte , nordeste, sudeste , sul dentro - oeste