How did the new river impact ancient Nubia

The Nile brought the ancient Egyptians and Nubian's a constant source of water, allowing them to fish, farm, trade, and build communities along its banks. The land might have been less fertile. There might have been less farming, less food, and, therefore, less people.

Explanation:

Basically their source of life was this river, they used the water and its inhabitants in multiple ways. water is one of the most useful resources in the world, and having good access to it was the key to a successful and plentiful growth for the kingdom.

there has only been 12 presidents. the 12th president is/was moon jae-in

there is no chart here so no one can answer this.