Question

1. why is the delta region to the north called \lower egypt\?

Explanation:

The naming of "Lower Egypt" for the northern delta region is related to the flow of the Nile River. The Nile flows south to north, so the northern delta, being at a lower elevation (closer to the Mediterranean Sea and downstream) relative to the southern "Upper Egypt" (upstream, higher in elevation along the Nile's course), was termed "Lower Egypt" based on the river's direction and the topographical/elevation context.

Answer:

The delta region to the north is called "Lower Egypt" because the Nile River flows from south to north. Geographically, the northern delta region is at a lower elevation (downstream, closer to the Mediterranean) compared to the southern "Upper Egypt" (upstream, higher along the Nile’s course), so it was named "Lower Egypt" based on the river’s flow direction and relative elevation.