What geographical feature made possible the union of upper and lower egypt?

The Nile River is the geographical feature that made possible the union of Upper and Lower Egypt.

Commonly regarded as the longest river in the world, the Nile is the major north-flowing river in northeastern Africa, though some sources has given the title of the longest river to the Amazon River.

photos creat an ovveral image of the civil war

answer by yourhope:

the speaker of which statement would be best served by joining an interest group?

i want politicians to make more of an effort for lgbt rights!

: )