The Upper Egypt was mostly mountainous area in the southern part of Egypt, while Lower Egypt refers to the lowland area in the Northern part, mostly in the Nile delta.
Explanation:
Upper and Lower Egypt were actually the first two territories, that were unified by King Narmer. King Narmer was the ruler of the first Egyptian dynasty that ruled in the so-called early period. It is important to add that northern part of the country was more prosperous and developed.
It occurred because it was cheaper and businesses could retain more money and underpay their workers. The practical reasons are that children are faster, they can fit into smaller spaces and are more controlled.
