Answer:
encouraged farming traditions that, in places, endure in at least 6,000 years.
Explanation:
Plants generally require a constant supply of water and conducive conditions to grow and germinate. Therefore, the presence of a constant supply of water and conducive conditions for crops to grow and germinate will favor farming. These rivers serve as sources of water supply and also create an enabling environment for crops to grow.
I would say democracy for this time of the period.
