Respuesta :
the answer for this question is: agriculture was an important part of the economy. Both of these civilizations were originated near a river which makes the lands around it contains a lot of good nutrients for the plants. This makes it easier for both these civilizations to maintain a good amount of crops as their main method of obtaining wealth.
Answer:
a social class system with farmers at the bottom
Explanation:
I cannot see the options for the answers, but if you had the same multiple choice test in BUZZ, then this is the correct answer. ^
