by working hard
They used the stairs they built outside of the ziggurat.
People reached the upper levels of the ziggurat using a series of ramps or stairs that spiraled around the structure. These ramps provided easy access for priests and other individuals who needed to perform rituals or ceremonies at the top of the ziggurat.
Elevators and Escalators
It confirmed their own high status, and prevented upstarts from usurping power.
Upper nubia expands into Southern Sudan. Upper Nubia can de divided into Batn El Hajar or "Belly of Rocks", the sands of the Abri-Delgo Reach, or the flat plains of the Dongola Reach. (http://www.crystalinks.com/nubia.html)
True.
The four levels of the ziggurat at Ur served as a symbolic representation of the different tiers of society - the lower levels for common people and the upper levels for priests and rulers. It also served as a sacred place of worship and connection between the people and their gods. The height of the ziggurat also emphasized the grandeur and importance of the city's patron deity.
As information moves from lower to upper organizational levels, the granularity decreases. Lower levels deal with detailed and specific data, while upper levels focus on more generalized and summarized information. This shift in granularity allows higher-level management to make strategic decisions based on a broader perspective.
Upper epidermis is clear so that light can pass through and reach the palisade which are located below
Upper, middle, & lower class.
As often as they can, practically speaking (since automobile use is still the purview of the upper middle classes - and out of reach of most workers).
This is lame