What effect did the mongol invasion of the arab empire have on islam civilization

The Abbasid dynasty fell to the Mongols and became part of the Mongol empire

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.